... easily, specially polyethylene sliding wheels, low temperature rubber seals, the main pieces of molded stainless steel, aluminum rail accessories, ... steel parts galvanized screws all, reinforcement corrosion-resistant, easy to open and close, internal and external switch, maintenance is ... * height mm: (500-2500) * (1800-3000) between,6.opening direction: left and right any way you can. Steel plate ...