1. The left and right plates are equipped with integral bearings, and the lifting sprockets are matched in the form of integral bearings, which are flexible in operation and lighter in hand pull;
2. The internal gear transmission parts are all made of 20CrMnTi alloy steel and strict car burizing heat treatment process;
3. Equipped with 2 integral guide wheels, the guide chain is smooth , with good stability and high strength;
4. Use high strength T8 European standard lifting chain.
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