the specification of the chain looks like the crawer of a tank consisting of certain mumber of joints the joints of crewter are freely turned round

the some series of chain has same inner height and out height ans same pitch but the inner height and bend radius R can be made per different specifications

a unit chain joint is consisting of a left right chain plate and a updown cover each chain joint can be opened up so as to facilitate assembly and dismantal withour threading cables oil pipes and gas pipes can be put into the drag chain after the cover plate is opened

spacers are available for use which are able to divide the space inside the chain into divisions according to requirements