I-PP-2500HY Eveliswe yi-China Energy Group i-Ningxia Coal Industry Co., Ltd, ngokusekwe 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 yepolymerization, ukwahlukana, igranulation, ukupakishwa, njl.