Low pressure process is the core technology catalyst. TiCl4-Al (C2H5) 3 Germany Ziegler inventive structure formula polyethylene polyolefin catalyst of the first generation, low catalytic efficiency, Daqing polyethylene sheet manufacturers, per gram of titanium about thanks to kg of polyethylene. 1963 Belgian Solvay's first magnesium compound as the carrier of the second generation, the catalytic efficiency of titanium per gram to give tens of thousands to hundreds of thousands of g of polyethylene. Second generation catalyst also eliminates the need to remove catalyst residue after-treatment step. Fumed later developed highly efficient catalysts. In 1975, polyethylene sheet, Italian Montedison company developed into a granulator can be eliminated and the direct production of spherical catalyst polyethylene, Jixi polyethylene sheet manufacturers, known as third-generation catalyst, Yangquan polyethylene sheet manufacturers, high density polyethylene produced yet another change. Identification of polyethylene materials difficult to print (unless modified by bulk or surface modification), it is mostly colorless or light-colored products, of course, but also because of its good resistance to environmental aging, artificial turf sports field mostly made of polyethylene . The easiest way to differentiate is with a gas flame (eg lighter) lit a small sample, the sample will continue to burn, smoke, and has a candle burning taste. Draw on it with a nail look, scratched low density polyethylene (LDPE), otherwise it is a high density polyethylene (HDPE). Yangquan polyethylene sheet manufacturers, polyethylene sheet, Conte Conte sheet provided by the Shandong Petroleum Equipment Co., Ltd. Conte Shandong Petroleum Equipment Co. (www.njtlgcbc.com) strong, credible, in Dezhou plastic plate (sheet, section), rods and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Conte plate into the brilliant and you work for a better future!