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 ... ,4kg/mLength:6m,9m,12m(Different length for customers' choice) Acoustic Pipe