... , F347, F316/F316L, F316Ti,etc. Surface TreatmentCarbon steel:Shot blasted, black painting, rust-proof oil, transparent ... oil,galvanizing,, hot galvanizingAlloy steel:Shot blasted, black painting, rust-proof oil, transparent ... oil, galvanizing,, hot galvanizingStainless steel: pickled,PolishApplicationLow and middle pressure fluid pipeline,boiler, ...