I am Jean and I am doing research on heat pipe at Cape Peninsula University of Cape Town in South Africa. I am working on copper grooved heat pipes. I have difficulties to get these types of heat pipes. This morning I came across with your article on: " Experimental performance comparison of axially grooved heat pipes charged with acetone and ammonia", reason why I am writing to you. May you please help me with information and contacts on the manufacturer or supply of 500 mm grooved heat pipes with different inside geometries. Kind regards, Jean Show More