PP-2500HY nke China Energy Group Ningxia Coal Industry Co., Ltd mepụtara,dabere na NTH's Novolen gas-phase polypropylene technology.The ngwaahịa na-emepụta na polymerized propylene na ethylene dị ka isi akụrụngwa, N'okpuru omume nke a catalyst, site na usoro nke polymerization, nkewa, granulation, nkwakọ, wdg.