Why Are Q195, Q235, and Q355 Steels Used in Greenhouse Structures? A Complete Guide from Material Strength to Structural Safety
When people choose a greenhouse, they often focus first on the diameter of the steel tube, the wall thickness, or the thickness of the galvanized coating. Much less attention is usually paid to the actual grade of steel used to manufacture the tube. For a commercial greenhouse designed for long-term use, however, tube size is […]