This calibration method only needs a manufactured convex platform.
该方法只需一凸型平台。
The number of stiffened plate, convex platform part or to prevent cold-lap thin-walled place, must improve liquid aluminum liquidity. Mould temperature should be relative improve.
筋板、凸台部分或薄壁处为防止冷隔，要提高铝液流动性。模温应相对提高。
The convex platform at the front edge of the base-plate not only enhances the strength of the base-plate, but avoids clamping stagnation in the process of feeding paper, which is reliable.
底板前缘的凸台既加强了底板的强度，且在送纸时不会产生卡滞现象，使用可靠。
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