Kamfani
Kayayyakin da muke sayarwa masu zafi sune bututun ƙarfe madaidaiciya na dinki, bututun galvanized, bututun murabba'i da murabba'i, da bututun galvanized murabba'i da murabba'i waɗanda Tianjin Youfa Steel Pipe Group Co., Ltd ke samarwa. An ba da wannan kamfanin takardar shaida a ƙarƙashin tsarin gudanarwa na ISO 9001, ISO 14001, ISO 45001, da 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
Samfuri
Takardar Shaidar Api 5l Don Bututun Karfe Mai Karfe
Takaddun shaida na Fm don Shigar da Bututu
Takaddun shaida na Ul Don Bututun Feshin Wuta
Takardar shaidar API 5CT
Takaddun shaida na Fm don Fitar da Bututun Lantarki
Ce En10219 Domin Bututun Karfe Mai Murabba'i
Takaddun Shaidar API 5L Don Bututun Layi
Takaddun shaida na EPD don bututun ƙarfe mai walda
Ce En10219 Don Bututun Karfe Mai Zagaye
Takardar Shaidar ABS
TAKARDAR FPC
TAKARDAR BV
Dakin gwaje-gwaje
Takardar shaidar CNAS don Lab ɗin Tangshan
Takardar shaidar CNAS ta Tianjin