we can produce carbon steel cap,seamless cap,butt welded cap

1) Size: 1/2"-72"
2) Varieties: SCH20, SGP, STD, SCH40, SCH80, SCH160
3) Standard: ASME,ANSI,JIS,DIN,EN

4) Material: ASTM A234 WPB, carbon steel

5) Surface treatment:  black rust-proof oil, transparent oil, hot galvanizing
6) Price : 0.1-900 PC/USD 
7) Special design available