－ASTM A234 WPB
－ASTM A234 WP91,WP11,WP22,WP9,WP5,WPL6
－ASTM A860 WPHY70,WPHY65,WPHY60,WPHY52
－ASTM A403 WP304,WP321,WP316,WP316L,WP304L

－ASME B16.9-2007
－ASME B16.49-2000
－ASME B36.10-2004
－ASME B36.19-1985

－尺寸:  ½”~60”
－壁厚等级:
sch5,10,20,30,40,60,80,100,120,140,160,STD,XS,XXS,sch5s,10s,40s,80s

－尺寸:  1/2”~36”
－壁厚等级:
sch5,10,20,30,40,60,80,100,120,140,160,STD,XS,XXS,sch5s,10s,40s,80s

－尺寸:  1/2”~50”
－壁厚等级:
sch5,10,20,30,40,60,80,100,120,140,160,STD,XS,XXS,sch5s,10s,40s,80s

－尺寸:  1/2”~78”
－壁厚等级:
Class 150,300,400,600,900,1500,2500