The specialty of the hand lever gourd is that it can still show amazing controllability in some extremely narrow spaces, which completely depends on its driving mode. The driving mode of the handle mainly uses the lever principle. The length of the lever is about 20 cm. In some special environments, you can easily control the handle by extending a hand.

The driving mode of chain block is to pull the bracelet. Pulling the bracelet is mostly operated by two hands, accompanied by the swing of the arm. Although lifting in a narrow space is also a unique skill of chain block, it is still slightly inferior to the chain block. However, this does not prevent the use of chain block in most electricity free environments.

Both chain block and chain block are widely used, so there is no need to compete between them. As long as we make different choices according to different working environments, it is the best way to use them.