1- Large diameter stainless steel welded pipe 2-standard:ASTM,GB,DIN etc, 3-material:alloy steel. details of the pipe:CompanyCangzhou Zhonghao Pipeline Equipment Co., LtditemLarge diameter stainless steel welded pipeO.DFrom 159mm to 800mmGrade304,304L,321,316,316L,310S etc.Usage1)General service2)Petrochemical Industry 3)Aerospace Industry4)Fluid transport5)Nuclear Industry6)Heat Exchanger7) ...