| 3913 | | Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms: | | | | |
| 3913.10.00 | 00 | Alginic acid, its salts and esters | kg | 4.2% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 25% |
| 3914.00 | | Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms: | | | | |
| 3914.00.20 | 00 | Cross-linked polyvinylbenzyltrimethylammonium chloride (Cholestyramine resin USP) | kg | Free | | 35% |
| 3915 | | II. WASTE, PARINGS AND SCRAP; SEMIMANUFACTURES; ARTICLES | | | | |
| 3915 | | Waste, parings and scrap, of plastics: | | | | |
| 3915.30.00 | 00 | Of polymers of vinyl chloride | kg | Free | | 10% |
| 3916.20.00 | | Of polymers of vinyl chloride | | 5.8% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX, P,SG) | 35% |
| 3916.20.00 | 10 | Siding for house or building exterior | kg | | | |
| 3916.20.00 | 20 | Window, door, decking or railing profiles | m kg | | | |
| 3916.90.20 | 00 | Racket strings | m | 3.1% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 30% |
| 3917 | | Tubes, pipes and hoses and fittings therefor (for example, joints, elbows, flanges), of plastics: | | | | |
| 3917.10 | | Artificial guts (sausage casings) of hardened protein or of cellulosic plastics materials: | | | | |
| 3917.23.00 | 00 | Of polymers of vinyl chloride | kg | 3.1% | Free (A,AU,BH,B, C,CA,CL,E, IL,J,JO,MA,MX, P,SG) | 25% |
| 3917.29.00 | 50 | Less than 200 mm in length | thousand kg | | | |
| 3917.31.00 | 00 | Flexible tubes, pipes and hoses, having a minimum burst pressure of 27.6 Mpa | kg | 3.1% | Free (A,AU,BH,B, C,CA,CL, E,IL,J,JO,MA,MX, P,SG) | 25% |
| 3917.32.00 | | Other, not reinforced or otherwise combined with other materials, without fittings | | 3.1% | Free (A,AU,BH,B, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 25% |
| 3917.32.00 | 10 | Of polyvinyl chloride | kg | | | |
| 3917.33.00 | 00 | Other, not reinforced or otherwise combined with other materials, with fittings | kg | 3.1% | Free (A,AU,BH,B, C,CA,CL,E, IL,J,JO,MA,MX, P, SG) | 25% |
| 3917.39.00 | 10 | Reinforced with metal | kg | | | |
| 3917.39.00 | 20 | Of polyvinyl chloride | kg | | | |
| 3917.40.00 | | Fittings | | 5.3% | Free (A,AU,BH,B, C,CA,CL,E, IL,J,JO,MA,MX, P,SG) | 80% |
| 3917.40.00 | 10 | For brake hoses for the vehicles of subheading 8701.20 or headings 8702, 8703, 8704, 8705 or 8711 | kg | | | |
| 3918 | | Floor coverings of plastics, whether or not self-adhesive, in rolls or in the form of tiles; wall or ceiling coverings of plastics, as defined in note 9 to this chapter: | | | | |
| 3918.10 | | Of polymers of vinyl chloride: | | | | |
Harmonized Tariff Schedule of the United States inquiry: 3920590000
