THERMOLINE-HEAT EXCHANGER MODULES, DOUBLE END PLATES (WELDED), GASKETS AND STAMPING PLATE AS PER INVOICE NO. PV1004543 DTD. 10.01.2018 . HS CODES: 84199085 + 40169300 THERMOLINE-HEAT EXCHANGER MODULES, DOUBLE END PLATES (WELDED), GASKETS AND STAMPING