钻孔要求180 off 39mm dia holes on 4370mm P.C.D.
在加拿大 drilling requirement:180 off 39mm dia holes on4370mm P.C.D. 说的是钻180个孔，孔径是39mm,中心距是4370mm 是这个意思不？ 还有 Both types can be made in two parts . The first typeWILL NEED TO BE JOINED AND MACHINED . The s...华人论坛