machine parts precision casting
Architectural Hardware Investment Castings come from Chinese top investment casting manufacturer. Our Investment Castings for Architectural Hardwares have good quality and best service. In wax pattern process, we mix stearic acid and paraffin wax in wax pattern making, as you know, it is better than polyethylene, and the wax deformation is small. In shell making, we adopt automatic sand-covering production line, which was invented under the guidance of our general manager. The indoor temperature was controlled by air-conditions, keeping the temperature at 24℃±1℃, which can make the castings much more stable, the internal tissues much more well-proportioned. In shell hardening process, we use aluminium chloride to harden the shell. This can make the shell so hard that it can`t be distorted, at the same time the bug which the Casts for Architectural Hardwares may have will be decreased. If there are…
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