With CNC Mill capabilities 4B Plastics can custom fabricate parts to your specialized project. From strainers to packing support trays to flange lining 4B Plastics is the place to call! No Longer Do You Have to Wait Weeks Or Months For OEM Replacement Parts . It doesn t matter who made the equipment. The Master Machinists at 4B Plastics will custom machine the parts you need to your specifications in just days.