... for lock accessory 1.Aluminum with CNC machining, chamfer edge 2. Size: Dia. 18.86mm x Dia. 12. ... lock components. Xiamen Boming Industrial & Trading Co.,LtdItem name:Aluminum cnc machining partItem NO.:BM-S30Surface:platingProduct size: Dia. 18.86mm x ... usage of material involves many types, such as Stainless steel, Aluminum, Brass, Bronze. SGCC, SECC, and SPCC, etc. If you have ...