In standard parts industry, tungsten carbide cold heading dies need to under great unit pressure in cold upsetting deformation process , when a large degree of deformation and material hardness, units of pressure up to 2000MPa more.At the same time the me
Applications: The PVC foam boards are used for various instants. They are most commonly used in traffic signs, wall paneling, office furniture, kitchen and bathroom cabinets, telephone booths, rare and side steps in vehicles, ceiling boards, etc. The uses