罐壁（罐頂）人孔Tank wall (top) Manhole

人孔是安裝于儲罐壁下部，是操作工人在建罐、清罐、倒罐時的出入口，而人孔的強(qiáng)度和密封是技術(shù)關(guān)鍵。我廠生產(chǎn)的罐壁人孔主要有以下幾個標(biāo)準(zhǔn)系列供選型。

Manhole is installed in the lower part of the tank wall, are operative when the built tanks, tank cleaning, pouring entrances and exits, and the strength and sealing of manhole key technology. I plant the production of the tank wall manhole for the selection of the following standard series.