The forging die of adjustablepliers has been analysed and improved from integral die to inserted type die which is convenient in striking and assembling and its pack-age is easy to be changed.
对管子钳钳口的锻模进行了分析改进，将整体式锻模改为拼装式锻模。
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Other general-use tools with applications in electric power wiring include screwdrivers, adjustable slip-joint pliers and drills.