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3. application of pp hollow grid boards *the pp hollow grid board can be processed into turnover case, packaging case, clapboard, lining board, backing board and pallet, etc, due to its advantages of light weight, high tenacity, damp proof, environmental performance and secondary processing.
Jul 15, 2019 · a hollow ground blade is a knife blade that has been ground down to create a characteristic concave, beveled edge along the cutting edge of the knife. this effect is accomplished by starting the grind below the midpoint of the knife, creating a small wedge with concave sides that is extremely sharp and very easy to care for.
- dual operation allows both sharpener and hollow grinder in one machinecan sharpen a wide range of curved and straight machine blades with either single or double bevel edges in the knife re-sharpening environment, the equipment can easily be adjusted to provide a hollow grinding process for well used blades where the edge has become too thick.
High quality pe / pp / pc hollow grid sheet extrusion line, hollow sheet making machine . this pp/pe/pc hollow grid sheet extrusion line / hollow grid sheet production line / hollow grid sheet making machine/ hollow sheet machine adopts rm series high-efficiency single screw extruder, installed with mould, through vacuum molding, and followed by five roller, three roller hauling-off units,


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