PP-K4860 Uas yog tsim los ntawm Tuam Tshoj Zog Group Ningxia Coal Industry Co., Ltd, raws li NTH's Novolen roj-theem polypropylene technology.Cov khoom yog tsim nrog polymerized propylene thiab ethylene raws li cov khoom siv tseem ceeb, Raws li kev ua ntawm cov catalyst, los ntawm cov txheej txheem ntawm polymerization, sib cais, granulation, ntim, thiab lwm yam.