APPLICATION & Usage: Model HH-JC25 electric block is a kind of electric hoisting machinery that is easy to carry. It is suitable for factories, mine and building site, agricultural production, docks and storehouses, it has special function for the machinery installation, lifting cargoes, loading and unloading vehicles. The complementing usage of Model HH-JC25 electric block and various electric gyrocares can combine into motor crad that is suitable for monoract transportation, electric single-spar bridge cranes and cantilever cranes. Characteristics: 1. Good performance 2.safe to operate 3.light dead weigh 4.convenient to carry 5.To save a lot of labour 6.To save time