Pipe joints and elements for high density polyethylene pressure pipelines , types 1 and 2 ; pipe bends for butt - welding , dimensions 1型和2型高密度聚乙烯压力管道用管子接头与零件.对焊
Preformed directly buried insulating fittings with polyurethane pur foamed - plastics and high density polyethylene pe casing pipes 高密度聚乙烯外护管聚氨酯硬质泡沫塑料预制直埋保温管件
Manufacturer of toluene sulfonic acid , dichloro ethylcaprylate , and alpha lipoic acid , located in china -代理进口化工类产品，聚乙烯，高密度聚乙烯低密度聚乙烯线性低密度聚乙烯hcfc 。
Pipe joint assemblies and fittings for high - density polyethylene pressure pipes ; injection - moulded fittings for butt welding ; dimensions 高密度聚乙烯压力管用管道连接组件和管道配件.第6部
Pipe joints and elements for high density polyethylene pressure pipelines , types 1 and 2 ; injection moulded elbows for socket - welding , dimensions 1型和2型高密度聚乙烯压力管道用管子接头与零件.承插
Low density polyethylene has a crystallinity range of 65 percent , and high density polyethylene ( has a crystallinity range ) of 85 percent 低密度聚乙烯的结晶度为65 % ，而高密度聚乙烯的结晶度为85 % 。
Pipe joints and elements for high density polyethylene pressure pipelines , types 1 and 2 ; injection moulded tee pieces for socket - welding , dimensions 1型和2型高密度聚乙烯压力管道用管子接头与零件.承插
Pipe joint assemblies and fittings for high - density polyethylene pressure pipes ; adaptors for fusion jointing , flanges and sealing elements ; dimensions 高密度聚乙烯压力管道用管道连接组件和管道配件.第4
Pipe joints and elements for high density polyethylene pressure pipelines , types 1 and 2 ; pipe bends of segmental construction for butt - welding , dimensions . 1型和2型高密度聚乙烯压力管道用管连接件.对焊用弓
Pipe joints and elements for high pressure polyethylene pressure pipelines , types 1 and 2 ; turned and pressed reducing sockets for butt - welding , dimensions 1型和2型高密度聚乙烯压力管道用管子接头与零件.对焊
