zero gravity tools balancer

spring balancer instruction and pricezero gravity tools balancerretractor pictures and detailsspring balancercapacity is from 1 kg to 400 kg, the travel meters is from 1.5 meters to 3.0 meters.Spring balancer also namedtools balancer, load balancer, zero gravity tools balancer,retractor, spring tools balancer and so one names.Zero gravity tools balancerwidely used on production assembly lines, like package plant, auto assembling lines, slaughter house and so one areas .If you