衬氟塑料阀门
fluoroplastics lining valve
注聚泵阀材料
materials of polymer-injecting pump valve
复合塑料材料
composite plastic material
环境友好塑料材料
environmental friendly plastics material
木塑料材料辐照
wood plastics material irradiation
木-塑料材料辐照
wood plastics material irradiation
透明塑料材料
optical plastics
transparent plastic materials