Qingdao Sinoland International Trade Co.,Ltd is one of the China black anodizing aluminum inverter ... Website:http://www.sinolandinfo.com, we can offer customized and high quality OEM black anodizing aluminum inverter heat sinks ... sinksAvailable materialsAluminum, Alloy , Copper, Bronze, Nylon, Acrylic etcProcessCNC milling and turning, drilling, grinding, bending, stamping, tappingTolerance:0.05mm~0. ...