Gas Springs

How to find out good the gas springs / gas strut ? We are making the gas springs /gas strut 13years . We develop and produce by ourselves, buy raw materials by ourselves, and then process, package, ship, sell and after-sales. The annual output reaches 800000 pieces, including cabinet gas springs / gas strutt, bed gas springs / gas strut and industrial gas springs / gas strut，car gas springs / gas strut. We are already a production line with mature technology.