The company specializes in producing stainless steel pipes, the main material: 304,304 L, 301,321, AF316L, ... 2520 and so on. The company specializes in producing stainless steel pipes, the main material: 304,304 L, 301,321, AF316L ... * 40mm, welcomed the call letters ordering! stainless steel seamless tubematerialStandardφ6*1-1.5φ28*2-3φ89*4-50Cr18Ni9 (304)00Cr19Ni10 (304L)1Cr18Ni9Ti (321 ...