... 25mm, 32mm Standrad Lenght: 2M Certification: FM Rubber Foam Insulation Tube / Pipe features good heat protection, strong load bearing, non ... of TIT as follows: Thermal Insulation Pipe Inner Size(mm)Copper Pipe Size(Inch)Iron Pipe (DN) 9(N) ... Insulation Pipe inner size is 89mm.About the Thermal Insulation Tube inner size ≥89mm, we suggest use the same thickness of the plate., Rubber Foam Insulation ...