... ,DIN,GB 2.Material:25Cr35Ni+MA 3.ISO9001:2008 Ethylene Plant Steam Cracker Coil Systems1.Standard:ASME,ANSI,ASTM,DIN,GB2 ... days after we signed SALES CONTRACT.8.Port of departure:Shanghai,Dalian;Qiangdao etc.9.Certification:ISO9001:200810.Payment:L/C ... Da Qing Petrochemical Company 1,200,000 Ton/Year Ethylene Plant.Commercial furnacesThermal cracking of hygrocarbons is accomplished in tubular reactors ...