Wall thickness alloy pipe conforms to standard:

　　din17175-79

　　jisg3467-88

　　jisg3458-88　gb5310-95

　　gb9948-88

　　astma335/a335m

　　astma213/a213m

Thick-walled alloy tubes application: Seamless steel tubes for high-temperature, low-temperature, and corrosion-resistant use in the oil, chemical, power, and boiler industries.