39.17.23.00 -tubes, pipes and hoses and fittings therefor (for example, joints, elbows, flanges), of plastics: --rigid tubes ---of polymers of vinyl chloride
39.17 -tubes, pipes and hoses and fittings therefor (for example, joints, elbows, flanges), of plastics:
39.17.2 -tubes, pipes and hoses and fittings therefor (for example, joints, elbows, flanges), of plastics: --rigid tubes
39.17.23.00 -tubes, pipes and hoses and fittings therefor (for example, joints, elbows, flanges), of plastics: --rigid tubes ---of polymers of vinyl chloride