... and fittings; 2.Brass fittings for pex-al-pex pipe,water-heating pipe,brass pipe; 3.Brass manifolds,etc. Features:Material: Random ... ISO9001:2000;Applications:Cold or hot water supply, heating system including flooring heating, wall heating and radiating system, central air conditioning system, ... which is only 1/1500 of brass pipe, and 1/250 of steel pipe;Non-toxic: No heavy metal additives, ...