Hello, We are one of leading manufacturers of Power supply and inverter systems in India. For the new products we will require Heat sinks in sizable volumes. From your website I found below 2 types suitable for our design: 1936-025 1936-027 Can you please provide more details on the 2 types. i.e CAD drawing which will help us understand the Dwg in detail. Do you have them in stock? To begin with we would require around 20kg for trials and after product approval we shall go for higher quantities. Await for feedback.--Warm Regards, Chaitanya Medhekar.