The forging die of adjustable pliers 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。
The forging die of adjustable pliers 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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