TCVN 6149-1-2007 Thermoplastics pipes, fittings and assemblies for the conveyance of fluids.Determination of the resistance to internal pressure.Part 1: General method
2007TCVN 6149-1-2007 Thermoplastics pipes, fittings and assemblies for the conveyance of fluids.Determination of the resistance to internal pressure.Part 1: General method