... thickness-between 0.2mm to 5mm5.The standard Length:20ft(6.096m)5.Nominal Size, Actual Outside Diameter, Tolerance on Outside ... distribution, fire protection, solar, fuel and oil, HVAC, compressed air, LPG gas, snow melting and vacuum systems.-type L copper tube can ... flare fittings. Only seat and flare fittings are legal for gas lines. Available in hard and soft types. 7.The picture ...