不锈钢管执行标准 不锈钢管主营材质:1Cr17Ni7(301) ,0Cr18Ni9(304), 1Cr18Ni9Ti(321), 316 ,316L ,309S, 310S ,0Cr13 ,1Cr13, 2Cr13 ,3Cr13, 0Crl8Ni9,1Crl8Ni9Ti0,0Crl7Nil4M02, 0Crl7Ni12M02, 1Cr17Ni7(310), 0Cr18Ni9(304),1Cr18Ni9(302) ,00Cr19Ni11(304L), 1Cr18Ni12(305) ,0Cr23Ni13(309S),OCr25Ni20(310s), Ocr17Ni12Mo2(316), 00Cr17Ni14Mo2(316L),0Cr19Ni13Mo3(317), 1C18Ni9Ti ,Ocr18Ni9Ti(321),00Crl9Ni1O ,0Crl8Nil2M02Ti