... 3. tolerance:0.05mm-0.2mm 316 stainless steel adjustable base used for sofa1. material: stainless steel2. ISO certificate3. tolerance ... . Delivery: one time, one step 1) Material: Steel, Brass, Copper, Stainless steel, Plastic, Aluminium, POM, Delrin, Titanium Alloy etc. ... founded in 1997 as a leading manufacturer specializing in various metal parts, including CNC machining, stamping meatal parts, and ...