These protecting systems are very important in ensuring the safety of workers within the trench. Trench boxes come in different dimensions and types, depending upon the depth and problems from the trench. Drainage Trenches: Drainage trenches are designed to control the movement of drinking water, prevent flooding, and redirect drinking https://miningequipmentparts35543.blogdal.com/29001630/details-fiction-and-front-loader-backhoe