we can supply Free Custom Gas Spring Sample Here are brief introduction of our company: Manufacturer and exporter of locking,compression gas spring,damper,delivery 7 days,applicated in cabinet,furniture,industrials,toolbox,car support etc.Sample is free Supply free custom made samples before you place order.If you want to custom gas spring ,tell us the specs ( the best is that you send a drwaing to us).1:stroke length 2: extended length 3: cylinder diameter 4: rod diameter . Or if you have difficult