... Product name: type L copper tube or copper tube type L2.Chemical composition:Cu-99.9%min, P-0.015- ... 0.040%3.Type: straight copper tube and pancake coil copper tube4. ... , Wall Thickness, Theoretical Weight of type M copper tube Type LNominal Size,inchActual Outside Diameter,inchTolerance ... gas, snow melting and vacuum systems.-type L copper tube can be used with sweat, compression and ...