Chimodzi mwazinthu zanga khumi zapamwamba zachitsulo
Mabizinesi apamwamba 100 ku Tianjin
Chitsimikizo chapamwamba kwambiri chazinthu za 5A
Tianjin wotchuka mtundu mankhwala
Ozizira anapanga gawo nthambi ya China Zitsulo Structure Association
Mphotho ya Golden spectrum ya China brand Festival
Makampani opanga 500 apamwamba kwambiri ku China
Tianjin Daqiuzhuang Chamber of Commerce
Chiwongola dzanja cha China metal material circulation association ndiye mphoto yapamwamba kwambiri ya AAA yolowa nawo ngongole
China nthawi yolamulira Chitukuko cha Industrial Development ndi Cooperation Innovation Alliance
Chiyeneretso chapadera kwa ozizira kupinda zitsulo kupanga kupanga zitsulo kapangidwe mu China
Tianjin Jinghai District Federation of industry and Commerce (chamber of Commerce)
Mabizinesi khumi apamwamba omwe amalipira msonkho ku Tianjin
China Steel Structure Association
API Spec.5L Certificate
Chitsimikizo cha Bv cha French Bureau of Shipping
European EN 10210 Standard
European EN 10219 Standard
Tianjin wotchuka mtundu mankhwala
Zaka 100 zamisiri nyenyezi" pamakampani omanga aku China
GB/T24001-2016/ISO 14001:2015 Standard
GB/T45001-2020/ISO 45001:2018 Standard
Mabizinesi apamwamba a 500 apamwamba ku China
Chitsimikizo cha ISO9001
Chitsimikizo cha chitoliro chachitsulo cha DNV
Japan JIS makampani muyezo chitsimikizo JIS g3466 stkr400, JIS stkr490
Satifiketi ya chitoliro chachitsulo cha ABS
Enterprise muyezo BC1
Mtengo CNAS
Japan JIS makampani muyezo chitsimikizo JIS g3466 stkr400, JIS stkr490
National Square Rectangular Steel Pipe Kupanga Single Champion Certificate
Satifiketi Yoyang'anira Zachilengedwe
certification system management
Satifiketi Yoyang'anira Zachilengedwe
Green Product Certification
