filter screen : 1,Material:SUS 2,Processing method:stamping,bending 3.OEM ... , brass, plastic etc.Making process:Stamping, deep drawing, bending, punching, laser cutting, threading, welding , tapping, riveting, grindingSurface treatment:Hot galvanized, polishing ... , Auto CAD, (IGS, STP, STL and X-T) metal filter screen