... .Thread1/4NPT 4.Mainly used in water treatmet,industrial equipment Wingkam is a supplier of quality metal casting and our ... according to customer's requirements, drawings or samples.The materials of castings we supply include: Bronze, Brass, Aluminum, Stainless ... we could provide: Dimension CMM measure, Material Chemical check, Water/Air Pressure check, Mechanical Property, Yield Strength, Tensile ...