ʻO kekahi o kaʻu mau lama kila he ʻumi
ʻO nā ʻoihana 100 kiʻekiʻe ma Tianjin
ʻO ka hōʻoia kiʻekiʻe loa o ka huahana 5A
ʻO nā huahana brand kaulana ʻo Tianjin
ʻO ka lālā ʻāpana anuanu o Kina Steel Structure Association
Hāʻawi ʻia ka makana ʻulaʻula o China brand Festival
ʻO 500 mau ʻoihana hana kiʻekiʻe ma Kina
Keena Kalepa o Tianjin Daqiuzhuang
ʻO ka helu hōʻaiʻē o China metala material circulation association ka makana AAA kiʻekiʻe loa
ʻO nā manawa Kina e alakaʻi ana i ka hoʻomohala ʻana i ka ʻoihana a me ka hui ʻana i ka ʻoihana hou
ʻO ka hōʻailona kūikawā no ka hana ʻana i ke kila hoʻoheheʻe anuanu o ka hana kila kila ma Kina
Tianjin Jinghai District Federation of Industry and Commerce (chamber of Commerce)
ʻO nā ʻoihana uku ʻauhau he ʻumi ma Tianjin
Hui Hana kila Kina
API Spec.5L Palapala
Bv palapala hōʻoia o Farani Keʻena moku
ʻEulopa EN 10210 maʻamau
ʻEulopa EN 10219 Kūlana
ʻO nā huahana brand kaulana ʻo Tianjin
Century old craftsman star" ma ka ʻoihana kūkulu hale o Kina
GB/T24001-2016/ISO 14001:2015 maʻamau
GB/T45001-2020/ISO 45001:2018 maʻamau
ʻO 500 mau ʻoihana hana pilikino kiʻekiʻe ma Kina
ISO9001 palapala hōʻoia
ʻO ka hōʻoia ʻana o ka paipu kila DNV
ʻO ka hōʻoia maʻamau o ka ʻoihana JIS Iapana JIS g3466 stkr400, JIS stkr490
palapala paipu kila kapili moku ABS
ʻO ke kūlana ʻoihana BC1
CNAS
ʻO ka hōʻoia maʻamau o ka ʻoihana JIS Iapana JIS g3466 stkr400, JIS stkr490
National Square Rectangular Steel Pipe Manufacturing Single Champion Palapala
Palapala Hōʻoia Pūnaehana Hoʻokele Kaiapuni
hōʻoia ʻōnaehana hoʻokele maikaʻi
Palapala Hōʻoia Pūnaehana Hoʻokele Kaiapuni
Hōʻoiaʻiʻo Huahana ʻōmaʻomaʻo
