Scrub the carved (Dragon) blade with a hard brush (tooth brush) soaked in petrol and wipe it with a clean cloth before display.

用沾有汽油的硬刷子(牙刷)来对付刀身上有雕刻图案的弯刀，完事之后净布擦干摆放。

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Welding: all kinds of metal products brazing, all kinds of tool blade, saw tooth welding, steel pipe, copper pipe welding, the same kind of dissimilar metal welding;

焊 接：各种金属制品钎焊、各种刀具刀片、锯片锯齿的焊接、钢管、铜管焊接、同种异种金属焊接；

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By using the same alternate blade cutter, bi-arc spiral bevel gear pair with equal-height tooth can be produced on the Gleason machine.

用同一双面刀盘在格里生机床上成功地切出了等高齿双圆弧弧齿锥齿轮副。

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