Modular system of cast iron clamps and galvanised steel tubing comply with the uks health and safety regulations cdm regulations and building regulations clamps are free from sharp edges with a galvanised finish and are available in four sizes tubing is manufactured to bs 1387 supplied in 32 metre lengths and available in 4 different diameter sizes simple and quick to design and install safe construction with high load capacity can be taken apart at any time self assembly required