Thermoplasticitemswithauniformcrosssectionareformedbyextrusion.Thisincludesmanyfamiliaritemssuchaspipe,hoseandtubing,gaskets,wireandcableinsulation,sheeting,window-framemoldingsandhousesiding.Moldingpowderisconveyeddownanelectricallyoroil-heatedbarrelbyar (共 8874 字) [閱讀本文] >>