Isosiyete
Ibicuruzwa byacu bishyushye ni imiyoboro y'icyuma igororotse ishongeshejwe, imiyoboro ya galvanised, imiyoboro kare n'iy'urukiramende, hamwe n'imiyoboro kare n'iy'urukiramende ya galvanised itangwa na Tianjin Youfa Steel Pipe Group Co., Ltd. Iyi sosiyete yahawe icyemezo cya ISO 9001, ISO 14001, ISO 45001, na 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
Igicuruzwa
Icyemezo cya Api 5l cy'umuyoboro w'icyuma gikozwe mu cyuma gitemba
Impamyabumenyi za FM zo Gushyiramo Imiyoboro
Impamyabushobozi za Ul ku muyoboro w'amazi akoreshwa mu gutwika
Icyemezo cya API 5CT
Impamyabumenyi za FM zo Gushyiramo Imiyoboro Irimo Ifunze
Ce En10219 Ku muyoboro w'icyuma wa kare
Icyemezo cya API 5L cy'umuyoboro w'umurongo
Impamyabumenyi za EPD ku muyoboro w'icyuma wasutswe
Ce En10219 Ku muyoboro w'icyuma kizengurutse
Icyemezo cya ABS
ICYEMEZO CYA FPC
ICYEMEZO CYA BV
Laboratwari
Icyemezo cya CNAS cya Laboratwari ya Tangshan
Icyemezo cya CNAS cya Tianjin