MATERIAL: Stainless steel ASTM 304 (SIS 2333) TREATMENT: Electropolishing-factor. AXIS: The axis of the hinges ROCA is a calibrated tube capped at both ends with two special trim to give a secure and resilient. The logo engraved on these borders is your guarantee. ROCA fittings are the only polished electrolytically. Electropolishing is a process to polish, remove the metal impurities and achieve a flawless finish by removing a thin layer of its outer surface. Electropolishing has big benefits: It gives a high resistance to corrosion, including that which arises from the difference in potential of metals. Improves the look and achieves higher brightness, the disappearance of the micropores. Lower risk of adhesion and lower friction
