PP-2500HY E hlahisoang ke China Energy Group Ningxia Coal Industry Co., Ltd, e thehiloeng ho theknoloji ea NTH's Novolen gas-phase polypropylene.Sehlahisoa se hlahisoa ka polymerized propylene le ethylene e le thepa e ka sehloohong e tala, Tlas'a ts'ebetso ea catalyst, ka mokhoa oa polymerization, granuging, karohano, joalo-joalo.