It is made of 6MM galvanized sheet by laser cutting and folding, with 8MM upper cover plate and 8 inch universal super heavy nylon wheel (polyurethane universal wheel can be selected), which makes the product more beautiful, more convenient and easy to move. The left and right sides can adjust the width freely; the three kinds of joints can be installed on demand. Make the accident move conveniently and easily. Improve work efficiency. Bearing 3.5 tons