欧美精品一区二区,国产日韩欧美,欧美一性一乱一交一视频,欧美午夜理伦三级在线观看,欧美乱妇狂野欧美在线视频,欧美老熟妇又粗又大,欧美性受XXXX黑人XYX性爽,欧美影院,精品国产人成在线_亚洲高清无码在线观看_国产在线视频国产永久2021_国产AV综合第一页一个的一区免费影院黑人_最近中文字幕MV高清在线视频 ,国产成人久久精品一区二区三区 _午夜亚洲国产理论片中文飘花 _日本 888 XXXX _中文字幕日韩欧美一区二区三区 ,国产裸体美女永久免费无遮挡,无码国产69精品久久久久网站,欧美群妇大交群,被吊起来张开腿供人玩弄,国产精品一线二线三线精华液

XL-21 power distribution box is divided into two types. The box height of 1700mm and 1800mm is ordinary type (P type). The box is installed independently, and the inlet and outlet holes can be opened at the top according to the requirements; The box with a height of 1900 mm is of top bus type (M type), and the top of the box is equipped with a removable cover plate to facilitate the installation and removal of the bus;

The box is made of section steel frame, the door plate. Side and rear sealing plates are detachable. The installation plate and side beam can be adjusted. The installation and maintenance is flexible and convenient. The structure is compact, and the versatility is good;

Investment casting adjustable hinge is adopted, and the door opening is more than 135 °；

The mounting bracket in the box can be adjusted as a whole after the components are installed;

The installation and cable inlet/outlet can be done according to different application environment. It has strong generality and can be combined with multiple sets.