... , and mainly manufacture geogrids, geotextile, geomembrane,double-resistance grids for mining, high-pressure oil tubing, waterproof plate, ... fender, rubber waterstop belt,etc.Ceiling steel-plastic grids for miningSteel-plastic geogrids use polypropylene and steel wire ... extruding,cooling,welding etc techniques, to form square grids with whole structure.Specifications: JD GS+PP 4000MSParameter ...