316 stainless steel adjustable base used for sofa 1. material: SS316L 2. ISO certificate 3. tolerance:0.05mm-0.2mm 316 stainless steel adjustable base used for sofa1 ... 4. Capacity: 0.5~1020mm 5. Delivery: one time, one step 1) Material: Steel, Brass, Copper, Stainless steel, Plastic, Aluminium, POM, Delrin, Titanium Alloy etc ...