... , DIN 3: ISO9001 ASTM A53 hot-rolled seamless steel pipe Specification Typehot-rolled seamless steel pipe ASTM A 53 Pipe Size1/2"— ... , boiler heat, exchanger, gas metallurgy, etc.Surface Hot galvanized, Cold galvanized, Painted black, varnish paint, anti rust oil, 3PE, ... above beveled ends4.Packaging:Hexagonal shape bundles wrapped with strong steel strip and plastic cap, Besides that, we can also ...