... tube for Air-conditioning and Refrigeration Field Service ASTM B280 Pancake Coil copper tube is mainly used for Air Conditioning and ... Air Conditioner, Construction, Water and Gas.We can produce the Pancake Coil as per ASTM B280, ASTM B68, ASTM B75, ASTM ... and JIS H3300 standard. The Copper Pancake Coil is also with R410 A rated quality. Pancake coil is generally supplied lengths of ...