... heat sealing—film trimming and waste collecting—auto discharge Suitbale for Chafing dish material, meat, cupped water, lunch boxes, ... cupped noodles, bean curd, snacks, various prepared foods ready for heating microwaves, seasoned frozen foods, pickled foods, and processed ... head is made of Copper TEFLON.The cutter for the film is 23# standard knife for operation used in hospital (circling knife ...