箱式数控垫铁，分两种；单螺栓调节，双螺栓调节，主要用于数控机床，和加工中心使用，                                                                                                                                                                                                                主要规格有；                                                         180*100*60,                                                                                                                                                                                                                                                                                                  220*110*70,                                                                                                                                                                                                                                                                                                                              240*120*80                                                                                                                                            260*140*90                                                                                                                                                                                                                                                                                                                                                               285*160*100.                                                                                                                                                                          350*200*120