Triangular hand -pour gourd is an upgraded product for round hand stubburies. It is equipped with a double -guided link wheel and double spiny paw on the basis of the rounded hand pour gourd.

Improve more effort and higher safety factor.

Triangular hand -shaped stubbura adopts a double brake device, alloy steel and spine wheel, high -precision alloy gear set, hardness, high abrasion resistance, and constant teeth. The gear uses carburizing to strengthen the gear. The bite is good and smoother. It is safe and reliable after fatigue testing and tension testing. Hooks: Manganese steel anti -remove hooks, manganese steel materials create strong and durable, anti -deformation anti -broken fracture. Chain: The national standard G80 manganese steel has a heavy chain, and the inner width standard will not occur. The card chain wheel will not occur. Swip zipper: use bold galvanized full welding fibrosis, smooth and dirty hands. Bearing: Sensitive bearing chain wheels, saving time, saving and smoothing the chain without stuck, and more labor -saving operations.