9.23.76717(Left/Right) Manual Side Welder for Welding PVC doors and windows. 1. Without Pneumatic energy2. ... Simple operation, simple structure, easy maintenance.3. Suitable for small PVC profile doors and windows processing factory.PWS products ... , door hinges, friction stay, wind supporter, espagnolette bolt, window lock, door locks, window bolt, door bolts, PU Foam, glass glue, cleaner ...