The explosive hand pulls a gourd 0.5 tons to 10 tons. The explosion-proof hand pulling the gourd is based on the size of the load. There are different chain lengths to choose from. The explosion -proof hand pinoscope uses aluminum bronze and 铍 bronze as rough. The collision of this material will not produce mechanical sparks. Not only explosion -proof hand -proofing gourds, most of the materials used in explosion -proof tools are made of copper alloy materials. Due to the good thermal conductivity of copper and the characteristics of almost no carbon, the tools and objects are friction or impact. In a short time, in a short time The heat generated was absorbed and transmitted. The dust attached to the surface of the explosion -proof hand stubbuki is not cleaned in time, and it will become very stubborn after a long time. It is not easy to clean up, so it is easy to make the explosion -proof hand rust.