1.Gear: Japanese technology, innovative symmetrical arrangement of international standards, high-speed simultaneous gears than ordinary hoist gear steel, wear-resisting spends doubled, turning more smoothly, hand pull lighter.

2.Chain: higher strength the chain; In fine, after welding one-for-one medium frequency induction quenching processing, accord with international standard chain ISO3077-1984 technical requirements; Adapt to sudden overweight homework; Feel better; hand zipper Change ordinary gourd vertical downward pull, can only from multiple directions ° Angle, a 45 pulling, the range of bigger.

3. Hooks: high strength sufficient material hook, senior alloy material, make bear when outside overworked does not occur, but gradually deformation fracture and safety coefficient; Hook head to the goods in a new design, not decoupling.

4. Components: the main components adopt high quality alloy steel and selective, and resolutely eliminated size is unqualified, weight is not eligible, exterior not elegant components.