- carbon steel seamless buttweld pipe fittings ASTM A234 WPB
- 2017-01-07 20:32
- Our company is a big leading professional manufacturer of Carbon Steel Butt Welding Pipe Fittings according to A234 WPB
- carbon steel seamless butt-welding pipe fittings ASTM B16.9
- 2017-01-07 20:32
- Our company is a big leading professional manufacturer of Carbon Steel Butt Welding Pipe Fittings according to A234 WPB