1.1. This nail gun features an integrated automatic slag discharge design with decoration, preventing gun jamming and nail jamming, ensuring continuous operation, effectively improving work efficiency, and reducing failures. 2.2. The concrete nail gun operates quietly, and the harder the working object, the softer the noise. It is designed for longterm use, equipped with a thickened soundproof cover, a 360degree muffler and noisereducing heat dissipation design, and an alloy frame to achieve sound insulation and thermal insulation. 3.3. This mini nail gun has a fourspeed power adjustment function, allowing flexible adaptation to different work intensities to meet various job requirements. First gear (all screws on the nail tube) delivers the power. Third gear (three screws removed) provides the lowest power. The power decreases from the first to the third gear. 4.4. The impact pin of the manual steel nail gun has a thickened design, giving it strength and powerful performance. It demonstrates outstanding advantages compared to similar products.