ASTM SA/A105 N 304 /304L
C22.8 316 /316L
P245GH A182 LF
RSt 37.2 P265GH
we have our own pipe fitting factory since 1998 ,which covers 100 acres. In 1998, we invested and set up a new flange factory. Up to now, we have a complete production system, and become a professional and competitive group in this field.
Copyright ©Langfang Dingyang Flange&Pipe Fitting Co.,Ltd 1998-2018. All Rights Reserved. Support By YIWAIMAO