The majority of Natural Rubber produced goes through standardised testing and is graded accordingly. Origins we source from are right across SE Asia, and African states on demand.
TSR 5, TSR 10, TSR 20
TSR 5CV, TSR 10CV, TSR 10VK, TSR 20CV, TSR 20VK, TSR 3CV60, TSR CV60, TSR CV50
TSR 5L, TSR 3L, TSR L