Needle slot on the neilsbed armor plate is usually milled one by one by milling machine controlled manually.

针床钢板上的针槽通常是由人工控床一条条出来的，费工费时，槽精度低。

Packng tools, Packing cutter, Gasket cutter, SWG winding machine, bending machine, Groover, Angling machine, Double jacketed machine, Gasket cutting machine, Puncher, Calender, Braider and so on.

密封械 ：盘根工具，盘根割工具，垫片割工具，缠绕，盘环，槽，倒角，包覆，双翦，，冲齿，辊压，盘根编织。