OD: 33.4mm to 610mm WT:3mm to 20mm standard:GB,ASTM,JIS,DIN,API5L,API5CT steel grade:ASTM A106,A53,X42,X52,X60,PSL1

The size: diameter from 1 inch to 24 inch,WT from 3mm to 20mm.

The standard:ASTM A106,ASTM A53.

The material:A106,A53,A33.

Use: natural gas, petroleum, chemical, electric power, heat, water and so on.

seamless boiler steel tubes