Seaworthy Package Bridge Pre Engineered Metal Buildings Product Specifications Items Specification Main Steel Frame Column Q235, Q345 Welded H Section Steel Beam Q235, Q345 Welded H Section Steel Secondary Frame Purlin Q235 C and Z Purlin Knee Brace Q235 Angle Steel Tie Rod Q235 Circular Steel Pipe Brace Q235 Round Bar Vertical and Horizontal Support Q235 Angle Steel, Round Bar or Steel Pipe Maintenance System Roof Panel EPS Sandwich Panel / Glass Fiber Sandwich Panel / Rock
