(1)manual chain block description Hsz series manual chain hoist is a kind of portable manual lifting machine.It is applied for machine installation, goods slinging, vehicle loading and unloading in factory, mining, construction site, agriculture production, wharf, dock, warehouse and so on. It specially plays important roles in outdoor working and non-power supply work. The chain block can be attached to a trolley of any type as a traveling chain block. It is suitable to monorail overhead conveying system hand traveling crane and jip crane. 1.Chain block is a manual , portable, easily operated lifting appliance . It is especially suitable for lifting work in the open air and places where power is not available . 2.Safe and reliable to use , convenient to maintain . 3.High efficiency and small pulling force 4.Light weight and portable in size . 5.Attractive appearance , small size 6.Durable 7.We are the manufactuer 8.Samples is available (2)main performances and technical specifications Cb Capacity:1~10 tons Standard lift height:2.5~3m Running test load:0.75~25tons No.Of falls of load chain:1~24 Load chain diameter:6~10mm Net weigth:14.5~75.7kg Force of full load:250~380kg Additional weight per 1m lift:0.8~8.8kg