Methods of testing plastics - Thermoplastics pipes, fittings and valves - Thermoplastics pipes for the conveyance of fluids - Nominal outside diameters and nominal pressures - Inch-based series

• 塑料的试验方法。热塑管、配件和阀门。流体输送用热塑管。额定外部直径和额定压力。英尺系列