RRTR Views 5 meanings found RRTR appears in tech and scientific settings, referring to a fast‑acting tactical router for communications or to resin‑transfer reactions and testing rigs used in materials and automotive engineering. Miscellaneous Rapid Response Tactical Router Resin to Resin Transfer Reaction Rencana Rinci Tata Ruang Rolling Resistance Test Rig Resin to Resin Transfer Reactions