... Specfication: Auto gas spring 1).Good quanlity2).Competitive pricing3).Meeting ISO9001,SGS,ROHS4).OEM available2 . Technology parameters ModelRod Diameter(d) ... options4) No noise, smooth operation5) Easy installation6) Competitive price, high-quality, fast delivery, good service5. Packing:1) As standard, ... questions? Pls contact us without hesitation. supporting gas spring ( ISO9001:2008,SGS,ROSH)