Stainless steel welded Boiler and Heat exchanger tubes Name: Stainless Steel Tube welded2.Standard: JIS, GB, ... , 180#, 320#, 400#, 600#, HL, Mirror, satin, bright,etc.6.Packaging: each in a plastic bag, several in weaving bag7.Application ... , 180#, 320#, 400#, 600#, HL, Mirror, satin, bright,etc.6.Packaging: each in a plastic bag, several in weaving bag7.Application ...