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Wrench surface treatment
source:Industry News release time:2022-08-05 Article author:Rosit Popular:Air band saw
1. Bright chrome: as bright as a mirror;
2. Chromite: matt;
3. Electrophoresis: black, with brightness, under the action of external direct current, the charged particles move directionally to the cathode or anode in the dispersed medium force to promote the separation of substances;
4. Phosphating: black, but with dark luster, the substance is immersed in the phosphating solution, and a layer of water-insoluble crystalline phosphorus is deposited on the instant surface, which is the process of hydrochloric acid conversion.
5. Grey Nickel: It is a brand-new surface treatment method with strong anti-rust ability and will increase the service life of the product.
6. Other treatments include blackening, nickel-iron alloy, pearl nickel, black nickel and titanium plating
1. There shall be no rust, burrs, cracks and spots, etc.;
2. The wrench is symmetrical, and the laser engraving should be clear;
3. The hardness must reach the specified standard, and the card position must be accurate
4. The turbine operation of the adjustable wrench should be flexible, and the pin should not be loose
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