Period : 2015/3/9 - 2018/1/14
No. : PTC15.00393.5046
Certification bodies : SGS
Period : 1900/1/1 - 1900/1/1
Certification bodies : WCB/6”-12”/150#-300#
Certification bodies : WCB/0.5”-4”/150#-300#
Certification bodies : A105/8” and larger/1500#-3000#
Certification bodies : A105/8” and larger/600#-900#
Certification bodies : A105/8” and larger/150#-300#
Certification bodies : A105/6”-12”/600#-900#
Certification bodies : A105/6”-12”/150#-300#
Certification bodies : A105/4”-8”/1500#-3000#
Certification bodies : A105/0.5”-4”/600#-900#
Certification bodies : A105/0.5”-4”/150#-300#
Period : 2016/2/2 - 2022/2/2
Certification bodies : ISO 9001 INTERTEK
Period : 2017/7/17 - 2020/3/10
No. : 6D-0775
Certification bodies : API-6D
Certification bodies : 8"-16",150#-300#
