We are offering chain hoist. Hs-vt series chain blocks 8 characteristics to make them have high ability and security, high agility, and this greatly reduced work intension. gear:they are innovated symmetrical arrayed highspeed synchronous gears, and are made from international standard gear steel. Compared with common gears, they are more wearable and steadier, and more laborsaving. chain:adopts high strong chain and high precision welding technology, meet iso3077-1984 international standard;fits for gusty overload work conditions;takes your hands a better feeling;multi-angle operation(with 45). hook:made of high-class alloy steel, it has high strength and high security;by using newy desing, weight will never escape. limit switch:using limit switch component in designation to protect chain and ensure security. Components:main components are all made of high-class alloy steel, with high precision and security. framework:slight design and more beautiful;with less weight and smaller work area. Plastic plating:by adopting advanced plastic plating technology inside and outside, it lookslike a new one after years of operation. encloser:made of high-classed steel, more firmly and dexterous.