... .OEM service 2.ISO 9001:2008 certification hydraulic fittingAccording to customers detailed specificationdrawings or samples1.Materials: carbon steel, ... , bronze, aluminum and aluminum casting ect.2.Standard: ASTM, SAE, BS. DIN, UNI3.Surface Treatments: sand blasted, painted, electrophoresis, zinc plated4 ... , Tapping, Threading, Burnishing, Slab Milling, Face Milling and End Milling hydraulic fitting