a,304 Stainless steel composite tube b,Diameter 114mm,Thickness 5.0mm c,Inner layer 4.5mm Q235, Outer layer 0.5mm SS304 304 Stainless steel tube, Stainless steel composite tube 1) Diameter 114mm, Total thickness 5.0mm, Length: 6000mm/pc.2) Outer layer 0.5mm SS304, Inner layer 4.5mm Q235.3) Finish Avaliable: PSS(Polished Stainless Steel) or SSS(Satin Stainless Steel) for your choice.4) The ...