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500mm直筒型人孔 6点固定。6mm厚×100mm高的直筒型颈圈，全部材质选用304不锈钢。不锈钢摆动螺栓配不锈钢螺母把手。
基本参数：
重量：33kg
设计压力：4Bar（58PSI）
测试压力：6Bar(87PSI）
设计温度：-20℃至200℃
以上数据因规格型号不同而不同。
500mm straight cylinder manhole 6 pegs, 6 mm (thickness) × 100 mm (height) straight cylinder collar, all materials selected are 304 stainless steel. Stainless steel swinging bolt is equipped with stainless steel nut handle.
Weight: 33kg
Design pressure: 4Bar (58PSI)
Test pressure: 6Bar (87PSI)
Design temperature: from -20℃ to 200℃
The above data are different due to different specifications and models.
