1. material: Q235 2. type: 25, 32, 40 series 3. technique: Hot Rolled 4. MOQ: 25mt per size ... SECTION was divided into 3 types- 25 series, 32 series, 40 seriesall these 3 series are commonly used all over the world. ... each series have totally 6 shapes and can be used ... , some are used for doorany shapes or types or series you need, pls feel free to contact with me ...