Ethylene Plant Steam Cracker Coil Systems 1.Standard:ASME,ANSI,ASTM,DIN,GB 2.Material:25Cr35Ni ... Wooden box ,sea-worthy plywood pallets with polyethylene film or steel cases or as customers request.7.Delivery time:30 to 60 ... s produce ethylene for polymerization with purity 99.95% vol. Feed is heated and cracked in the presence of steam by ... ,mta20,000-250,000 Ethylene Plant Steam Cracker Coil Systems