Ọkan ninu mi oke mẹwa burandi irin
Top 100 katakara ni Tianjin
Iwe-ẹri ti o ga julọ ti ọja 5A
Tianjin olokiki brand awọn ọja
Tutu akoso apakan ti eka China Irin Be Association
Golden julọ.Oniranran eye ti China brand Festival
Awọn ile-iṣẹ iṣelọpọ 500 ti o ga julọ ni Ilu China
Tianjin Daqiuzhuang iyẹwu ti Iṣowo
Iwọn kirẹditi ti ẹgbẹ kaakiri ohun elo irin China jẹ ẹbun AAA ti o ga julọ ti kirẹditi titẹ sii
Awọn akoko China Idagbasoke Idagbasoke Iṣẹ ati Ifowosowopo Innovation Alliance
Ijẹrisi pataki fun iṣelọpọ irin titọ tutu ti iṣelọpọ irin ni China
Tianjin Jinghai District Federation ti ile-iṣẹ ati Iṣowo (iyẹwu ti Iṣowo)
Awọn ile-iṣẹ isanwo owo-ori mẹwa mẹwa ni Tianjin
China Irin Be Association
API Spec.5L Certificate
Bv iwe eri ti French Bureau of sowo
European EN 10210 Standard
European EN 10219 Standard
Tianjin olokiki brand awọn ọja
Irawọ oniṣọnà atijọ ti ọgọrun ọdun” ni ile-iṣẹ ikole ti Ilu China
GB/T24001-2016/ISO 14001:2015 Standard
GB/T45001-2020/ISO 45001:2018 Standard
Top 500 awọn ile-iṣẹ iṣelọpọ aladani ni Ilu China
ISO9001 iwe-ẹri
DNV shipbuilding irin pipe iwe eri
Iwe-ẹri boṣewa ile-iṣẹ JIS Japanese JIS g3466 stkr400, JIS stkr490
ABS shipbuilding, irin pipe ijẹrisi
Idawọle bošewa BC1
CNAS
Iwe-ẹri boṣewa ile-iṣẹ JIS Japanese JIS g3466 stkr400, JIS stkr490
National Square Rectangular Steel Pipe Manufacturing Single Champion Certificate
Iwe-ẹri Eto Iṣakoso Ayika
iwe eri eto isakoso didara
Iwe-ẹri Eto Iṣakoso Ayika
Iwe-ẹri Ọja Alawọ ewe
