... /SAW Pipecarbon steel seamless pipe and welded pipe1.Tube for Fluid Transportation ServiceApplication:For Fluid Transportation serviceProduction Standard ... -dip, Varnish, Passivation, Phosphating, Shot Blasting 3.Tube for Heat Exchanger and CondenserApplication:For tubular heat exchangers ... designed and manufactured for boilers, supeiheaters and pressure systems of ships.Steel Grade:320, 360, 410, 490 ...