Prdduct Name                          Code                     Size（mm)           Weight（g)

                                             XT202000                      20*20                   65

                                             XT252500                      25*25                   106

                                             XT323200                      32*32                    173

       45°弯通                           XT404000                      40*40                    233

  45°Equal Elbow                     XT505000                       50*50                    458

                                             XT636300                        63*63                    768