Mapaipi a Chitsulo cha Kaboni a JIS G3454 STPG 370 Othandizira Kupanikizika – Womic Steel Group

Kufotokozera Kwachidule:

Mapaipi a JIS G3454 STPG 370 a Chitsulo cha Kaboni Othandizira Kupanikizika- Gulu la Zitsulo la Womic

Ndife akatswiri opanga ndi kutumiza kunja mapaipi osasunthika a JIS G3454 STPG370 ku China kwa zaka zoposa 20.

Mapaipi a JIS G3454 STPG 370 a Chitsulo cha Kaboni omwe amagwiritsidwa ntchito popereka mphamvu pa kutentha kwapakati pa 350℃.


Tsatanetsatane wa Zamalonda

Ma tag a Zamalonda

Mapaipi a JIS G3454 STPG 370 a Chitsulo cha Kaboni Othandizira Kupanikizika- Gulu la Zitsulo la Womic

Ndife akatswiri opanga ndi kutumiza kunja mapaipi osasunthika a JIS G3454 STPG370 ku China kwa zaka zoposa 20.

Mapaipi a JIS G3454 STPG 370 a Chitsulo cha Kaboni omwe amagwiritsidwa ntchito popereka mphamvu pa kutentha kwapakati pa 350℃.

 

Muyezo wa Zamalonda wa ku Japan uwu umatchula mapaipi achitsulo cha kaboni—omwe amatchedwa “mapaipi”—omwe amagwiritsidwa ntchito popereka mphamvu pa kutentha kwakukulu kwa pafupifupi 350°C. Pa ntchito zomwe zimafuna kukana mphamvu kwambiri, mapaipi ayenera kutsatira JIS G3455.

Gulu la Womic Steel — Kupambana mu Kupanga Mapaipi Osakhazikika a JIS

Poyang'anizana ndi mavuto akuchulukirachulukira pamsika komanso kufunikira kwakukulu kwa mapaipi a JIS, Womic Steel Group inazindikira mavuto omwe makasitomala akhala akukumana nawo kwa nthawi yayitali. Poyankha, tinakhazikitsa mwachangu gulu lapadera kuchokera ku madipatimenti athu aukadaulo, kafukufuku ndi chitukuko, ndi zida, ndikuyika ndalama zambiri kuti athetse mavuto opanga mapaipi osakhazikika a JIS.

Kudzera mu luso lamakono lopitilira komanso kukonza njira, Womic idakwanitsa kupanga mapaipi onse achitsulo chosasunthika a JIS okhala ndi mainchesi akunja kuyambira 139.8 mm mpaka 318.5 mm.

Izi sizikutanthauza kupita patsogolo kwina kwakukulu muukadaulo wopanga wa Womic, komanso zimachepetsa kwathunthu kusowa kwa zinthu zomwe zakhala zikuvutitsa msika wapadziko lonse kwa nthawi yayitali.

Ntchito ndi Kufunika kwa Makampani

Mapaipi achitsulo opangidwa motsatira miyezo monga JIS G3454 STPG370 amagwiritsidwa ntchito kwambiri mu:

Kumanga zombo

Zomera zamafuta

Maboiler ndi makina opanikizika

Makina olemera

Mapaipi a mafakitale

Nthawi zonse takhala tikukhulupirira kuti mavuto omwe ali pamsika ndi udindo wathu. Kupambana kumeneku sikuti kumangotsimikizira kuti zofunikirazo zilipo, komanso chofunika kwambiri ndikutsimikizira kuti zili bwino komanso kuti zikugwira ntchito bwino.

Mapaipi onse achitsulo a Womic JIS amatsatira mokwanira zofunikira za JIS motsatira izi:

Kulondola kwa miyeso

Mphamvu ya makina

Kukana dzimbiri

Kuchita bwino kwa kuthamanga

Kuphatikiza apo, Womic ikhoza kupereka zipangizo za mapaipi zogwirizana ndi JIS ndi ziphaso zogawa zombo kuchokera ku: ABS, DNV, BV, LR, CCS, KR, NK, RINA, RS

"Kagulu Kakang'ono", "Mitundu Yambiri", "Zofunikira Zapadera" — Womic Delivers

Kaya zosowa zanu zikuphatikizapo maoda ang'onoang'ono, zofunikira zosiyanasiyana, kapena zofunikira zapadera zaukadaulo, Womic Steel Group yadzipereka kupereka mayankho ogwirizana ndi pulogalamu yanu.

Takulandirani kuti mutitumizire imelo:sales@womicsteel.com 

 

Mitundu Yopangira Mapaipi Opangira a Womic JIS

Njira Zopangira

Kupanga mapaipi opanda msoko

Kupanga mapaipi otetezedwa ndi magetsi (ERW)

 

Zofunikira pa Chithandizo cha Kutentha

Mapaipi nthawi zambiri amaperekedwa monga momwe amapangira

Mapaipi omalizidwa ozizira ayenera kutsekedwa pambuyo popangidwa

Miyezo Yopezeka

Magiredi achitsulo omwe alipo

JIS G3454 - Mapaipi a Chitsulo cha Kaboni Othandizira Kupanikizika

Utumiki Wopanikizika (STPG Giredi):

STPG 370

STPG 410

JIS G3455 - Mapaipi a Chitsulo cha Kaboni Othandizira Kupanikizika Kwambiri

Kugwiritsa Ntchito Makina ndi Kapangidwe kake (Magiredi a STS):

STS 370

STS 410

STS 480

JIS G3456 - Mapaipi a Chitsulo cha Kaboni Othandizira Kutentha Kwambiri

Chitoliro cha Utumiki Wotentha Kwambiri (STPT Giredi):

STPT 370

STPT 410

STPT 480

Takulandirani kuti mutitumizire imelo:sales@womicsteel.com 

 

Mafotokozedwe a WomicJIS G3454 Kaboni Chubu chachitsulo/Mapaipi

1. Kapangidwe ka Mapaipi Opanda Msoko a JIS G3454 STPG370

  Giredi  Katundu Wokoka (N/mm2) Malo Ogulira kapena KuchulukaMphamvu (N/mm2)  

Kutalika (%)

 

Chitsanzo cha NO. 11; NO.12 Zitsanzo Chitsanzo cha NO. 5 Chitsanzo cha NO. 4
Longitudinal Zosintha Longitudinal Zosintha
STPG370 ≥ 370 ≥ 215 ≥ 30 ≥ 25 ≥ 28 ≥ 23
STPG410 ≥ 410 ≥ 245 ≥ 25 ≥ 20 ≥ 24 ≥ 19

 

Zindikirani (Mapaipi Opanda Msoko a JIS G3454 STPG370):

1. Pa mapaipi achitsulo cha kaboni omwe ali ndi makulidwe osakwana 8 mm, timagwiritsa ntchito chitsanzo cha NO.12 kapena NO.5 poyesa kukoka. Kutalika kochepa kudzachepetsedwa ndi 1.5% kuchokera pamtengo wa tebulo pamene makulidwe achepa ndi 1 mm. Mtengo womwe wapezeka udzazunguliridwa kukhala mtengo wokwanira malinga ndi JIS Z8401 (njira yozungulira).

2. Kutalikirana komwe kwatchulidwa pamwambapa sikukugwira ntchito pa machubu achitsulo cha kaboni omwe ali ndi mainchesi ofanana kapena ochepera 25A. Izi ziyenera kulembedwa.

3. Tikatenga mapaipi achitsulo olumikizidwa ndi mphamvu yamagetsi kuti tiyese kukoka, timasankhanso chitsanzo cha NO.12 kapena NO.5 kuchokera ku zigawo zomwe sizili ndi mipata yolumikizira. Pa mapaipi achitsulo cha kaboni omwe ali ndi makulidwe osakwana 8 mm, timagwiritsa ntchito kutalika kwa chitsanzo cha NO.12 (longitudinal) kapena chitsanzo cha NO.5 (transverse) kuti tiwerengere.

Giredi Chitsanzo cha Mawonekedwe  

Kutalika kumasiyana malinga ndi makulidwe a khoma. (%)

 

>7~<8 >6~<7 >5~<6 >4~<5 >3~<4 >2~<3 >1~<2
STPG370 Chitsanzo cha NO.12 30 28 27 26 24 22 21
Chitsanzo cha NO.5 25 24 22 20 19 18 16
STPG410 Chitsanzo cha NO.12 25 24 22 20 19 18 16
Chitsanzo cha NO.5 20 18 17 16 14 12 11

 

2. Kapangidwe ka mankhwala a chubu chachitsulo cha kaboni (Chigawo: %)

Giredi C Si Mn P S
STPG370 ≤ 0.25 ≤ 0.35 0.30-0.90 ≤ 0.040 ≤ 0.040
STPG410 ≤ 0.30 ≤ 0.35 0.30-1.00 ≤ 0.040 ≤ 0.040

3. Kupatuka Kovomerezeka kwa M'mimba mwake wakunja ndi Kukhuthala kwa Khoma kwa Mapaipi Opanda Msoko a JIS G3454 STPG370

Mtundu Kupatuka Kovomerezeka kwa M'mimba mwake Wakunja Kupatuka Kovomerezeka kwa Kukhuthala kwa Khoma
    Chitsulo Chopanda Msoko Chogwira Ntchito Kwambiri ≤ 40A ± 0.5 mm  < 4 mm  +0.6mm 0.5
≥ 30A≤ 125A ± 1%
150A ± 1.6 mm
≥ 200A ± 0.8%  ≥ 4mm + 15%-12.5%
Pa ma ≥350A, tikhoza kuyeza malinga ndi malire. Kupatuka kovomerezeka ndi ± 0.5%.
 Chitoliro cha Chitsulo Chopanda Msoko Chogwira Ntchito Mozizira ndi Chitoliro cha Chitsulo Choponderezedwa ndi Magetsi ≤ 25A ± 0.03 mm  < 3 mm ≥ 3 mm  ± 0.3 mm ± 10%
≥ 32A ± 0.8%
Pa ma ≥350A, tikhoza kuyeza malinga ndi malire. Kupatuka kovomerezeka ndi ± 0.5%.

Chidziwitso cha mapaipi osasemphana a JIS G3454 STPG370:

1. Tikayesa dayamita yakunja kudzera mu perimeter, titha kudziwa mwa kusintha muyeso wa circumference kapena mtengo woyesedwa kukhala dayamita yakunja. Zonsezi zimagwira ntchito pa kulolerana komweko (± 0.5%).

2. Pazigawo zomwe zakonzedwa, tsimikizirani kuti kupirira makulidwe a khoma kukugwirizana ndi tebulo lomwe lili pamwambapa. Kulekerera kwa dayamita yakunja sikukugwira ntchito pa tebulo.

3. Mawonekedwe a mapaipi achitsulo cha kaboni omwe amagwiritsidwa ntchito pansi pa 350℃ amalamulidwa ndi malamulo otsatirawa:

1) Chitolirocho chiyenera kukhala chowongoka komanso chothandiza. Malekezero ake ayenera kukhala olunjika ku mzere wa chubu.

2) Chitoliro chamkati ndi chakunja chiyenera kukonzedwa bwino popanda zolakwika zoopsa.

Takulandirani kuti mutitumizire imelo:sales@womicsteel.com 

 

4. Kukula ndi Kulemera kwa Mapaipi Opanda Msoko a JIS G3454 STPG370

Diamita Yodziwika Chidutswa chakunja (mm)
Makulidwe a Wall Odziwika

 

Makulidwe a Wall NO.10 Makulidwe a Wall NO.20 Makulidwe a Wall NO.30 Makulidwe a Wall NO.40 Makulidwe a Wall NO.60 Makulidwe a Wall NO.80
A B Kukhuthala (mm) Kulemera kwa Unit(kg/m2) Kukhuthala (mm) Kulemera kwa Chigawo (kg/m2) Kukhuthala (mm) Kulemera kwa Unit(kg/m2) Kukhuthala (mm) Kulemera kwa Unit(kg/m2) Kukhuthala (mm) Kulemera kwa Unit(kg/m2) Kukhuthala (mm) Kulemera kwa Unit(kg/m2)
6 1/3 10.5             1.7 0.369 2.2 0.450 2.4 0.479
8 1/4 13.8 2.2 0.829 2.4 0.675 30. 0.799
10 3/8 17.3             2.3 0.851 2.8 1.00 3.2 1.11
15 1/2 21.7 2.8 1.31 3.2 1.46 3.7 1.64
20 3/4 27.2             2.9 1.74 3.4 2.00 3.9 2.24
25 1 34.0 3.4 2.57 3.9 2.89 4.5 3.27
32 1 1/4 42.7             3.8 3.47 4.5 4.24 4.9 4.57
40 1 1/2 48.6 3.7 4.10 4.5 4.89 6.0 5.47
50 2 60.5     3.2 4.52     3.9 5.44 4.9 6.72 6.6 7.46
65 2 1/2 76.3 4.5 7.97 5.2 9.12 6.0 10.4 7.0 12.0
80 3 89.1     4.5 9.39     5.5 11.3 6.6 13.4 7.6 15.3
90 31/2 101.6 4.5 10.8 5.7 13.6 7.0 16.3 8.1 18.7
100 7 114.3     4.9 13.2     6.0 16.0 7.1 18.8 8.6 22.4
125 5 139.8 5.1 16.9 6.6 21.7 8.1 26.3 9.5 30.5
150 6 165.2     5.5 21.7     7.1 27.7 9.3 35.8 11.0 41.8
200 8 216.3 6.4 33.1 7.0 36.1 8.2 42.1 10.3 52.3 12.7 63.8
250 10 267.4     6.4 41.2 7.8 49.9 9.3 59.2 12.7 79.8 15.1 93.9
300 12 818.5 6.4 49.3 8.4 64.2 10.3 78.3 14.3 107 17.4 129
350 11 355.6 6.4 55.1 7.9 67.7 9.5 81.1 11.1 94.3 15.1 127 19.0 158
400 16 406.4 6.4 63.1 7.9 77.6 9.5 93.0 12.7 123 16.7 160 21.4 203
150 18 457.2 6.4 71.1 7.9 87.5 11.1 122 14.3 156 19.0 205 25.8 254
500 20 508.0 6.4 79.2 9.5 117 12.7 155 15.1 184 20.6 248 26.2 311
550 22 358.8 6.4 87.2 9.5 129 12.7 171 15.9 213
600 24 609.6 6.4 92.2 9.5 141 14.3 210            
660 26 660.4 7.9 127 12.7 203

 

Miyeso Kulekerera kwa Mapaipi a Chitsulo cha Kaboni a JIS G3454

Gawo Kulekerera kwa m'mimba mwake wakunja Kulekerera makulidwe a khoma
Chitoliro chachitsulo chopanda msoko chotentha
 
40 A kapena pansi pa 【0.5mm Pansi pa 4mm
+0.6mm
-0.5mm
4mm kapena kupitirira apo
+ 15%
-12.5%
50A kapena kupitirira apo ndipo kuphatikiza 125 A 【1%
150A 【1.6mm
200A kapena kupitirira 【0.8%
Pa chitoliro cha kukula kwapadera kwa 350 A kapena kupitirira apo, zolekerera zomwe zili m'mimba mwake wakunja zitha kutsimikiziridwa poyesa kutalika kwa kuzungulira. Pankhaniyi, zolekerera ziyenera kukhala 【0.5%.
Chitoliro chachitsulo chopanda msoko chozizira komanso chitoliro chachitsulo cholumikizidwa ndi kukana kwamagetsi 25 A kapena pansi pa 【0.3mm Pansi pa 3mm
【0.3mm
3mm kapena kupitirira apo
【10%
32 A kapena kupitirira 【0.8%
Pa chitoliro cha kukula kwapadera kwa 350 A kapena kupitirira apo, kulekerera kwa dayamita yakunja kungadziwike ndi
Muyeso wa kutalika kwa kuzungulira. Pankhaniyi, zolekerera ziyenera kukhala 【0.5%.

 

KulembaMapaipi Opanda Msoko a JIS G3454 STPG370

Chitoliro chilichonse chikadutsa mayeso chiyenera kulembedwa ndi zinthu zotsatirazi. Komabe, mapaipi ang'onoang'ono kapena mapaipi ena omwe atchulidwa ndi wogula akhoza kulumikizidwa pamodzi ndikulembedwa chizindikiro cha phukusi lililonse mwanjira yoyenera. M'zochitika zonsezi, dongosolo lokonzekera zinthu zomwe zalembedwa silinatchulidwe.

Wogula akavomereza, gawo lina la zinthuzo lingachotsedwe.

(1) Chizindikiro cha chilembo cha giredi (STPG 370)

(2) Chizindikiro cha chilembo chosonyeza njira zopangira zinthu (3)

(3) Miyeso(4)

(4) Dzina la wopanga kapena mtundu wake wodziwika

(5) Chizindikiro cha chilembo sichikutanthauza kufunika kowonjezera kwa khalidwe, Z

Chidziwitso (3) cha mapaipi osasemphana a JIS G3454 STPG370

Chizindikiro cha chilembo chosonyeza njira zopangira (3) chidzakhala motere, bola ngati mzerewo ungasiyidwe kusiya chopanda kanthu.

Chitoliro chachitsulo chopanda msoko chomalizidwa ndi kutentha kwambiri – S – H

Chitoliro chachitsulo chopanda msoko chomalizidwa ndi ozizira- S – C

Chitoliro chachitsulo cholumikizidwa ndi mphamvu yamagetsi kupatula chomwe chimatha kutentha ndi chozizira - E - G

Chitoliro chachitsulo cholumikizidwa ndi magetsi cholimba komanso cholimba- E - H

Chitoliro chachitsulo cholumikizidwa ndi mphamvu yamagetsi yolimba - E - C

 

Chidziwitso (4) cha mapaipi osasemphana a JIS G3454 STPG370

Miyeso iyenera kufotokozedwa motere.

Mainchesi odziyimira × makulidwe odziyimira pawokha a khoma

Chitsanzo: 50A × Sch 40, 2 B × Sch 40

Kuyesa kwa Mapaipi Opanda Msoko a JIS G3454 STPG370

(1) Kusanthula kwa mankhwala

(2) Mayeso Olimba

(3) Mayeso Ophwanyika

(4) Mayeso Opindika

(5) Kuyesa kwa Hydrostatic kapena Kuyesa Kosawononga
Takulandirani kuti mutitumizire imelo:sales@womicsteel.com 

 

Machubu a Chitsulo cha Kaboni a JIS G 3454amapangidwa motsatira zomwe Japanese Industrial Standard (JIS) imanena. Kapangidwe ka makina aMachubu opanda msoko a CS JIS G3454Zingasinthidwe kwambiri kudzera mu chithandizo cha kutentha, zomwe zimawathandiza kukwaniritsa zofunikira zosiyanasiyana za uinjiniya.

Chidziwitso ichi chimakwiriramachubu achitsulo cha kaboni kuti agwiritsidwe ntchito popanikizidwa, yomwe imagwiritsidwa ntchito kwambiri pansi pa mikhalidwe yopanikizika yokhala ndi kutentha kwakukulu kogwira ntchito kwampaka 350°CMachubu a JIS G3454 amagwiritsidwa ntchito kwambirizida zamagalimoto, makina oyendetsera madzi, makina omangira, ndi zida zolondola zamakanikamonga masilinda.

Pakati pa magiredi awa,JIS G3454 STPG 370ndi chimodzi mwa zipangizo zomwe zimagwiritsidwa ntchito kwambiri pakugwiritsa ntchito mphamvu. TimaperekaSTPG 370, STPG 410, ndi magiredi ena okhala ndi njira zosiyanasiyana zomalizira kuti akwaniritse zofunikira pakugwira ntchito komanso mawonekedwe m'mafakitale osiyanasiyana.

Monga wogulitsa wodalirika,Chitsulo cha Womicali ndi zinthu zambiri zosungiramo zinthuJIS G3454 STPG 370ndiMachubu opanda msoko a STPG 410, kuonetsetsa kuti ntchito zanu zikufika mwachangu komanso kuti zinthu zikuyenda bwino nthawi zonse.

 

Mitundu Ina ya Miyezo ya JIS yaWomicMapaipi achitsulo

Mapaipi opanda msoko a JIS angapangidwe ndi chitsulo cha kaboni, chitsulo cha alloy, kapena chitsulo chosapanga dzimbiri, kutengera zomwe zimagwiritsidwa ntchito. Miyezo iyi ya JIS imayesa magwiridwe antchito a zinthu monga mphamvu ya makina, kuuma, kukana dzimbiri, kukana dzenje, kuyankhidwa kwa kutentha, ndi zina zotero.

Pansipa pali chidule cha miyezo yayikulu ya mapaipi achitsulo a JIS ndi magiredi ofanana nawo.

 

JIS G3439 - Chitsime cha Mafuta cha Chitsulo Chopanda Msoko, Chikhomo, Machubu ndi Chitoliro Chobowolera

Makalasi azitsulo: STO-G, STO-H, STO-J, STO-N, STO-C, STO-D, STO-E

Kugwiritsa ntchito: Chidebe cha chitsime cha mafuta chopanda msoko, machubu, ndi chitoliro chobowola

Makampani: Kubowola ndi kufufuza mafuta ndi gasi

 

JIS G3441 - Machubu a Chitsulo Chopangidwa ndi Alloy a Zolinga za Kapangidwe ka Makina

Magiredi achitsulo: SCr420TK, SCM415TK, SCM418TK, SCM420TK, SCM430TK, SCM435TK, SCM440TK

Kugwiritsa Ntchito: Machubu achitsulo a Alloy omwe amagwiritsidwa ntchito mumakina, zida zamagalimoto, nyumba zama makina

 

JIS G3444 - Machubu a Chitsulo cha Kaboni pa Zolinga Zonse Zomangira Nyumba

Magiredi achitsulo: STK30, STK41, STK50, STK51, STK55

Ntchito: Zothandizira zomangamanga, mafelemu, makina omanga

Kukula kwa Miyeso: 21.7 mm - 1016.0 mm

 

JIS G3445 - Machubu a Chitsulo cha Kaboni Opangira Kapangidwe ka Makina

Magiredi achitsulo: STKM11A, STKM12A, STKM13A, STKM14A, ndi zina zotero.

Ntchito: Mapangidwe a makina, zigawo zamagalimoto, makina olondola

 

JIS G3455 - Mapaipi a Chitsulo cha Kaboni Othandizira Kupanikizika Kwambiri

Magiredi achitsulo: STS38, STS42, STS49

Kugwiritsa ntchito: Mapaipi amphamvu kwambiri, ma boiler, machitidwe a hydraulic

Kukula kwa Miyeso: 10.5 mm - 660.4 mm

 

JIS G3456 - Mapaipi a Chitsulo cha Kaboni Othandizira Kutentha Kwambiri

Magiredi achitsulo: STPT38, STPT42, STPT49

Kugwiritsa ntchito: Nthunzi yotentha kwambiri, ma boiler, ma superheaters

Kukula kwa Miyeso: 10.5 mm - 660.4 mm

 

JIS G3460 - Mapaipi Achitsulo Othandizira Kutentha Kochepa

Magiredi achitsulo: STPL39, STPL46, STPL70

Ntchito: Ntchito ya Cryogenic, LNG, malo otentha kwambiri

Kukula kwa Miyeso: 10.5 mm - 660.4 mm

 

JIS G3464 - Machubu Osinthira Kutentha kwa Chitsulo a Utumiki Wotentha Wochepa

Magiredi achitsulo: STBL39, STBL46, STBL70

Kugwiritsa ntchito: Zosinthana kutentha pang'ono, zoziziritsa kutentha

Kukula kwa Miyeso: 15.9 mm - 139.8 mm

 

JIS G3465 - Machubu achitsulo opanda msoko obowolera

Magiredi a Chitsulo: STM-055, STM-C65, STM-R60, STM-1170, STM-1180, STM-R85

Kugwiritsa Ntchito: Chitoliro chobowola, chivundikiro, ndi mipiringidzo yopanda kanthu

Makulidwe a Miyeso:

Chikwama: 43 - 142 mm

Mapaipi Opanda Mabowo: 34 - 180 mm

Chitoliro Chobowolera: 33.5 - 50 mm

 

JIS G3467 - Machubu Achitsulo a Chotenthetsera Choyaka Moto

Magiredi achitsulo: STF42, STFAl2, STFA22, STFA23, STFA24, STFA26

Kugwiritsa ntchito: Machubu otenthetsera moto, ng'anjo zoyeretsera, makina otenthetsera a petrochemical

Kukula kwa Miyeso: 60.5 mm - 267.4 mm

 

JIS G3101 – SS400 Chitsulo Chotentha Chozungulira

Kufotokozera:

JIS G3101 SS400 ndi imodzi mwa zitsulo zomangidwa zomwe zimagwiritsidwa ntchito kwambiri.

Ndi chitsulo cha kaboni chokhazikika cha ku Japan chomwe chimagwiritsidwa ntchito kwambiri popanga zinthu, kumanga, mafelemu, ndi makina.

Takulandirani kuti mutitumizire imelo kuti mudziwe zambiri:sales@womicsteel.com