不锈钢吊环视镜人孔：不锈钢人孔公称通径：Ф400X300mm、Ф500X400mm（可根据用户要求提供不同型号、规格视镜） 产品材质：304、316L等（可根据用户要求提供其它材质） 产品概述：所有压力容器或非压力容器人孔均采用快开式结构，开启方便、安全、外形美观实用，有方形、圆形、椭圆形，承受压力≤0.5MPa。内外镜面光洁度Ra≤0.8μm，内机械抛光与电抛光Ra≤0.2μm，外表面镜面抛光或亚光。广泛应用于医药、化工、食品等行业的压力罐和反应釜等容器上。也可同时配置视镜、射灯、安全网格及管道输送连接件。
Stainless steel rings mirror manhole: stainless steel manhole nominal diameter: diameter 400X300mm, Phi 500X400mm (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.