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Stainless steel rings mirror manhole: stainless steel manhole nominal diameter: diameter 400300mm, Phi 500400mm (user requirements to provide different models and specifications mirror) product material: 304, 316L (according to user requirements to provide other materials) product overview: all pressure vessels or non pressure container manhole adopt quick opening structure, convenient opening, safety, beautiful and practical, with a square, round, oval, bear pressure equal to or lower than 0.5MPa according to. Inside and outside the surface roughness Ra is less than or equal to 0.8 m, in mechanical polishing and electrolytic polishing of Ra less than or equal to 0.2 mu m, the outer surface of mirror polished or matt. Widely used in pharmaceutical, chemical, food and other industries, such as pressure tank and reactor vessel. Can also be configured mirror, lamp, safety grid and pipeline connections.
