expansible coil preparatory coiler的意思|示意

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可膨胀线圈预备卷机

胀缩卷筒式带材预卷机 ... 胀缩卷筒式卷取机：expanding drum coiler 胀缩卷筒式带材预卷机：expansible coil preparatory coiler 胀力表管：gauge pipe ...