brass fitting,brass joint(OQS,ISO14001:2004,ISO9001:2000) Trachea copper jointsMaterials: ... range:-40--100,or -40F--212FMaterial: a. body: Cu Zn Pb b. O-ring: NBR Main Technics:Machining,forging, casting,Plating ... also.Inner packing: plastic bags, Outer Packing: White Carton brass fitting,brass joint