We are a big supplier for shoring props and can provide you all kinds of props you need. We use the material of Q-235, the thickness of the pipe can be 1.7mm,1.8mm, 2mm and 2.5mm; the diameter can be 56/48mm or 60/48mm or 48/42 etc. We are always on the principle of high quality, low price and long term cooperation, So it is my pleasure if you can send me the specification you need then I can quota you an attractive price. Thanks!