Dear sir, we introduce as importers of engineering goods. we understand you are manufacturing aluminum base metal core pcbs , mainly for power led application. we have in stock aluminum base copper clad laminate in 500 x 600 mm size, 35 micron copper, 75 micron thermal insulation, sheet thickness 1.5 mm. we will be pleased to quote on hearing from you. thanking you, madhav nagarkar mega engineering enterprises, 500, narayan peth, pune 411 030 phone 0 9822680524