读音:chòng kong ji,注意“冲”读chòng,不读第一声!英文:punching machine冲孔机定义: 为薄片加工,冲压,模压,压纹等强迫金属进入模具的活动部分。冲孔机和钻孔机的比较:钻孔是用钻头在加工材料上钻出孔的过程,而冲孔是以重力使钻头下冲成孔的过程。冲孔机适合加工软材料,因为钻孔机钻出来的孔会有毛刺,不...
I hope youll be entirely satisfied with this initial shipment.我希望您能对第一批货感到满意。Please exercise better care with future shipments.对今后装运的货,请多加注意。Can last shipment be duplicated?上次装运的货能再卖一批吗?Well send vess