Kamupene
Ko ā mātou hua hokohoko wera ko ngā paipa rino hononga tika kua whakarewaina, ngā paipa piauau, ngā ngongo tapawhā me te tapawhā hāngai, me ngā ngongo tapawhā me te tapawhā hāngai piauau, e tukuna ana e Tianjin Youfa Steel Pipe Group Co., Ltd. Kua whai tiwhikete tēnei kamupene i raro i ngā pūnaha whakahaere ISO 9001, ISO 14001, ISO 45001, me ISO 50001.
Youfa Gourp-ISO9001
Youfa Gourp-ISO14001
Youfa Gourp-ISO50001
Youfa Gourp-ISO9001
Youfa Gourp-ISO45001
Youfa Gourp-ISO50001
Youfa Gourp-ISO14001
Youfa Gourp-ISO45001
Youfa Gourp-ISO50001
Hua
Tiwhikete Api 5l mō te Paipa Rino Porowhita
Tiwhikete FM mō te Whakauru Paipa
Tiwhikete Ul mō te Paipa Pīni Ahi
Tiwhikete API 5CT
Tiwhikete FM mō te Whakauru Paipa Awaawa
Ce En10219 mō te paipa maitai tapawhā
Tiwhikete API 5L mō te Paipa Raina
Ngā Tiwhikete EPD mō ngā Paipa Rino Whakarewahia
Ce En10219 mō te paipa maitai porowhita
Tiwhikete ABS
TIWHIKETE FPC
TIWHIKETE BV
Taiwhanga
Tiwhikete CNAS mō te Taiwhanga Tangshan
Tiwhikete CNAS mō Tianjin