... than type K and thick than type L. Max OD of type L copper tube we make is 60mm. ... 1.Product name: type L copper tube or copper tube type L2.Chemical composition ... .0900.0093.336.Application:-Standard copper tubes of type L are used for interior above ground plumbing, domestic water ... air, LPG gas, snow melting and vacuum systems.-type L copper tube can be used with sweat, compression and ...