Ethylene Plant Steam Cracker Coil Systems 1.Standard:ASME,ANSI,ASTM,DIN,GB 2. ... Material:25Cr35Ni+MA 3.ISO9001:2008 Ethylene Plant Steam Cracker Coil Systems1.Standard:ASME,ANSI,ASTM,DIN,GB2.Material:Alloy ... ,KPa10-200Ethylene capacity,mta20,000-250,000 Ethylene Plant Steam Cracker Coil Systems