For double wheels central locking casters in past some years we only have 5 inch and 6 inch. Now in order to meet variety demand of clients we have developed 4 inch twin wheels central locking casters.    Our 100mm twin central lockin......

 In order to make client select more convenient. Here we list two sheet of specs sheet.Which include both  * Single wheel central locking casters---5inch,6inch and 8inch model  * Twin wheels central brake casters-----5inch and 6inch mo......