J.W.Winco，Inc。宣布它现在提供英制大小黄铜油位景观眼镜。
These components have a body made of brass, natural glass sight window, and an optional reflector of heat resistant technopolymer plastic (Polysulfon). The sight glasses are highly stable and scratch proof. They are sealed with an O-ring on the periphery and not on the face edge of the glass, so leak tightness is therefore not affected by axial pressures. They are suitable for use on pressurized oil tanks. The sight glasses are offered in a variety of sizes with NPT threads from 3/8” to 1 1/4”.
提起：紧固+加入•锁定•闩锁•引脚那o戒指那视觉•机器视觉•摄像机+镜头•框架抓取器•光学过滤器
寻找南非的黄铜眼镜，1“和1/14”喜欢BSP螺纹。