Acoustic Pipe (clamp compression Acoustic Pipe;steel pipe) Material:Q195 Diameter:50mm Thickness:1.0/1.2/1.5/1.8/2.0,ect Acoustic Pipe Material: Q195Specifications: Diameter*thickness,weight/meter50*1.0mm,1.2kg/m50*1.2mm,1.44kg/m50*1.5mm,1.8kg/m50*1.8mm,2.15kg/m50*2.0mm,2.4kg/m50*2.5mm,2.93kg/m50*2.8mm,3.26kg/m50*3mm,3.5kg/m50*3.5mm,4kg/mLength:6m,9m,12m(Different length for customers' choice) ...