Place of Origin : Shanghai,China

8 characteristics make HS-VT chain blocks high ability, security and agility, which greatly reduce your labor intensity.
1. Gear: they are innovated symmetrical arrayed high speed synchronous gears, and are made form international standard gear steel. Compared with common gears, they are more wearable and steadier, and more laborsaving.
2. Chain: adopts high strength chain and high precision welding technology, meet ISO3077-1984 international standard; fits for gusty overload