The HSZ-CB series chain block is one kind of use simple, carries the convenience the manual hoisting machinery. It is suitable for use in factories, mines, farms, construction sites, wharves, docks and warehouses for installation of equipment, as well as for loading and unloading goods. It is specially advantageous for lifting work in open air grounds and places where no electric power supply is available. 1TON-50TON LIFTING HEIGHT : 3M-20M LOAD CHAIN: 6MM,7.1MM,8MM,10MM High quality