What's the manual wrench?
The manual also called ordinary spanner wrench, mainly used in the ordinary life and work, it is very simple to use, mainly divided into single head wrench, double wrench spanner wrench, wrench, socket wrench, sleeve wrench, a screwdriver, torque wrench, torque wrench, wrench, ratchet wrench, cross hook wrench, inner six angle wrench, square wrench, manual clutch torque wrench, pipe wrench, T type wrench, L type wrench, spanner, crescent wrench, trigeminal drum wrench, tire wrench, spark plug wrench, wrench wrench, wrench and other combination. The torque wrench is divided into a sound wrench, a pointer wrench and a digital wrench.
Texture of material1.: chrome vanadium chemical symbol CR-V, is of good quality steel;2. carbon steel: quality in general, more circulation in the market.
surface treatment1. bright chrome: bright as mirror surface;2. chrome: matte;3. electrophoresis: black, with brightness, in the role of additional DC, so that the charged particles in the scattered medium force to the cathode or anode directional movement, to promote the separation of substances;4. phosphating: black, but shiny dark, the substance immersed in phosphating solution, deposited in the surface of the formation of insoluble phosphate in water, is the process of conversion of hydrochloric acid.5. ash nickel: is a new surface treatment method, rust resistance is strong, and will increase the service life of the product.There are 6. other black, nickel iron alloy, pearl nickel, black nickel and titanium processing etc..
