PP-2500HY Nke China Energy Group Ningxia Coal Industry Co., Ltd mepụtara, dabere na teknụzụ nke usoro polypropylene gas nke NTH. A na-eji propylene polymerized na ethylene emepụta ngwaahịa a dị ka ihe bụ isi, n'okpuru ọrụ nke ihe na-akpali akpali, site na usoro nke polymerization, nkewa, granulation, nkwakọ ngwaahịa, wdg.