JIS G 3429 Seamless Automotive Steel Tubes for High …
Seamless Steel Tubes For High Pressure Gas Cylinder. Material: Manganese,Chrome-molybdenum,Nickel-molybdenum. Steel Grade: STH11 STH12 STH21 STH 22 STH31. Standard: JIS G3429. Dimension: 5-420mm*0.5-50mm*12000mm Max.