This caulking gun is made of thickened stainless steel, which is durable, wear-resistant and corrosion-resistant. The total length is 60 cm, the barrel length is 42 cm, and the barrel diameter is 6 cm. 20 mm, 18 x 55 mm, 10 x 55 mm, 20 mm, 16 mm, 5 different size nozzles, more convenient to use Good sealing performance, can be filled from multiple angles and directions, improve work efficiency, save time and materials Can be filled with cement, lime, caulking agent, joint beautifying agent, etc., widely used and labor-saving. Suck the cement slurry into the injection device through the nozzle, and then push the handle to quickly inject the cement mortar to the desired location