brass fitting,brass joint(OQS,ISO14001:2004,ISO9001:2000) Trachea copper jointsMaterials: brassTrachea copper ... ,or -40F--212FMaterial: a. body: Cu Zn Pb b. O-ring: NBR Main Technics:Machining,forging, casting,Plating,PolishingSize: various sizes ... packing: plastic bags, Outer Packing: White Carton brass fitting,brass joint