Certificates

Company

Our hot sale products are welded straight seam steel pipes, galvanized pipes, square and rectangular tubes, and galvanized square and rectangular tubes which are supplied by Tianjin Youfa Steel Pipe Stock Group Co., Ltd. This company has been certified under the ISO 9001, ISO 14001, ISO 45001, and ISO 50001 management systems.

ISO 9001 IQNET证书(2026)

Youfa International -ISO9001

ISO 5001_00226En00994R201(1)证书-1

Youfa Gourp-ISO50001

youfa group ISO 9001

Youfa Gourp-ISO9001

ISO9001-New Building

Youfa scaffolding -ISO9001

ISO 45001-00224S22636R3L_OHSMSIQNET证书-1

Youfa Gourp-ISO45001

不锈钢ISO9001

Youfa stainless pipe -ISO9001

ISO 14001-00224E32872R3L_EMSIQNET证书-1

Youfa Gourp-ISO14001

 

Product

api 5l

Api 5l Certificate For Spiral Steel Pipe

12 (1)
Fm Certificates For Pipe Fitting

1. UL 证书EX27390-Vol1-Sec1-20260820(1)-1

Ul Certificates For Fire Sprinkler Pipe

2

API 5CT Certificate

FM管道科技管件

Fm Certificates For Grooved Pipe Fitting

cf9f9943-98e1-4895-af81-b6635f195b8b

Ce En10219 For Square Steel Pipe

API 5L葫芦岛

API 5L Certificate For Line Pipe

EPD友圣发

EPD Certificates For Welded Steel Pipe

CE 00041461-CPD-ENGUS 2026版 (1)(2)-1

 Ce En10219 For Round Steel Pipe

12 (1)
ABS Certificate

1705476316105

FPC CERTIFICATE

BV江苏友发船级社

BV CERTIFICATE

3

China Classification Society

7cace03d-0995-4eec-ab58-418d5d608f77

 

Ce En10219 For Spiral Weld Steel Pipe

BSI CERTIFICATE

BSI CERTIFICATE

SPPT SNI YOUFA

SNI CERTIFICATE

Lab

CNAS-Certificate-For-Lab.jpg
CNAS Certificate for Tangshan Lab

CNAS-Certificate-For-Lab.jpg
CNAS Certificate for Tianjin