... Manual Middle Welder for Welding PVC doors and windows. 1. Without Pneumatic energy2. Simple operation, simple structure, easy maintenance.3. Suitable for ... from PUWEI Company, concludes all hardware for UPVC windows and doors and aluminum window and doors too. All our products ranges ... pneumatic tools, electric tool, welder, etc. 9.23.76718 Manual Middle Welder for Welding PVC doors and windows