... We have our own technical teams, so we can design, fabricate and install this steel structure workshop ... 45-50 years under normal conditions.D. You can choose freely the roof and wall panel, included ... 0.7mm), color, type, etc.E. You can choose freely the material of door and windowsF. We ... rainspout, trimming sheet, glass cement, etc. you can buy them according to your exact requirement Steel Grid/meshy/ ...