The aluminum alloy chain -type spiny wheel tight wire, also known as the aluminum alloy chain gourd, is made of aluminum alloy material, which is mainly used for the line adjustment of electricity, railway, and power locomotives. This aluminum alloy shell hand holds gourds with lightweight and simple use. The main body is made of high -strength aluminum alloy material. Standard configuration high -strength special alloy steel has a heavy chain. The handle of the load body design makes the gourd easily operate. The size is small, the weight is light, the maintenance is simple, the handboard is smaller than the ordinary hand, and the weight is lighter than the ordinary hand to pull the gourd.