components for steam cracker Y Piece Tube 1.Standard:ASME,DIN,GB 2.Material:alloy 3.Certification: ... ISO9001:2008 components for steam cracker Y Piece Tube1.Standard:ASTM,ASME,ANSI,DIN,GB2.Material:KHR35C, ZG40Cr20Ni32Nb3 ... :Used for Ethylene cracking furnace components for steam cracker Y Piece Tube