... 2.Turnable Base 180 degree,Marine Hardware,Marine Hinge 3.SS316 OR SS304 4.hand polished 5. ... =70MM50mm2.Turnable Base 180 degree,Marine Hardware,Marine Hinge,Marine cleat,antenna mount marine hardware3.SS316 OR SS304Details1 ... machining, turning, milling, drilling, thread cutting.5. Surface treatment: glass rays electrolytic polishing, coating, varnishing, bromzing. Passivating, grinding, polishing6. ...