PP-K4860 Ikorwa na China Energy Group Ningxia Coal Industry Co., Ltd, ishingiye ku ikoranabuhanga rya NTH rya Novolen gas-phase polypropylene. Iki gicuruzwa gikorwa hakoreshejwe polymerized propylene na ethylene nk'ibikoresho by'ibanze, bikozwe nk'umusemburo, binyuze mu nzira ya polymerization, gutandukanya, granulation, gupakira, n'ibindi.