31436385vinyl polymersPT2026-03-30 20:57:40UF31436386polymer, vinylNDUF31436387vinyl polymerNDBT31409837vinyl resinPTNT31455622polyvinyl acetalPTNT31455624polyvinyl acetatePTNT31455628polyvinyl alcoholPTNT31455632polyvinyl butyralPTNT31455635polyvinyl chloridePTNT31455638plastisolPTRT31370917vinylPT