Easy to use, labour-saving, high efficiency; no glue overflow, no air leakage equal to you or occasional DIY enthusiasts, this caulking gun will meet your requirements Quick vent valve to minimise glue overflow. Rotating tracheal joint makes the process more free and facilitates precise caulking Made of high-quality aluminium alloy materials, strong and durable Pneumatic glue guns are mainly used in households, factories, construction sites or other adhesives that can achieve a sealing effect, Manufacturer: hogtnd