PP-K4860 Eveliswa yi-China Energy Group i-Ningxia Coal Industry Co., Ltd, esekelwe kwi-NTH's Novolen gas-phase polypropylene technology.Imveliso iveliswa nge-polymerized propylene kunye ne-ethylene njengeyona nto iphambili ekrwada,Phantsi kwesenzo se-catalyst, ngenkqubo yokwenziwa kwepolymerization, njl, ukwahlukana, ukupakisha.