... ,ZL104, ALSI9CU3 3)Made by Die casting process in bulk order4)Secondary operation by drilling,threading5)Surface coating: ... painting, powder coating, anodized,chrome,shotblasting, or by customers' request5)Used for lighting industries, suitable for street ... light, construction light. Products range: dimension from 50mm to1000mm weight from 20g to 10000g Our existing LED lamp heatsinks are ...