Anhydrous Aluminium Fluoride - China

shandong dongyue polymer material co.ltd in Zibo, Shandong , China
the largest PTFE resin,refrigerant,fluorine salt manufacturer in china.

Qing Yuan Foreign Trade Corporation in Qingyuan County, Hebei, China
Qing Yuan Foreign Trade Corporation,is noted for its wide scope of business, rich operational experience and ample resources. Based its operation on the integration of science, industry and trade, it has set up a strategic partnership with its stockholders and customers and has become a leading