The Baotou CTO (coal-to-olefins) project is of national strategic significance and the world’s first coal-based MTO (methanol-to-olefins) demonstration project, with an annual production capacity of 600,000 tonnes. Its main products are polyethylene, polypropylene and some side products. 交换俱乐部娇妻奶呻吟啊视频 successfully developed the raw materials for medical and protective supplies such as masks and protective suits, including S2040 polypropylene high-melting spinning resin which has passed the US Food and Drug Administration (FDA) test, the GB test and the EU RoHS test.