Technical planning of cast iron manhole cover. When planning, in addition to determining the shape and size of cast iron parts based on working conditions and metal data functions, the rationality of planning must also be considered from the perspective of forged alloys
Carbide minning bit is made of refractory metal hard compound and binding metal by a synthetic material. Carbide mining bit has high hardness, high temperature resistant, great corrosion resistance, abrasive resistance and toughness, and a series of excellent charcteristics.
The financial crisis, all walks of life cope with economic entities have been actively looking for good policy, and formed a consensus: should the crisis as an industry in transition, enterprise product technology upgrade opportunity, relying on scientific and technological innovation and adoption of advanced manufacturing technology to overcome the financial crisis.