关于盘跟的翻译 求帮忙
在加拿大 We need packing 4 track from 8mm to 25mm (We cannot accept 3 track packing) We need packing 6.5mm (3 track packing) Pure PTFE Lubricated Packing made from Expanded PTFE Wastage Material (Cheap White Packing) Kevlar Impregnated with PTFE Corn...华人论坛