Ethylene乙烯EtheneEthylene聚乙烯粉, 低密度, 500微米LDPEPolyethylene, low density, ≤400 micronPolyethylene, UHMW聚乙烯, UHMW低密度聚乙烯, ≤ 400 微米Polyethylene powder, low density, 500 micronPolyethylene, high density聚乙烯, 低密度, 1000微米高密度聚乙烯Polyethylene, low density, 1000 micronEthyleneetheneH2C=CH2AethylenAethenCH2=CH2R-1150ethene