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The following grooved fittings under the "Meihua" (Plum Blossom) brand from Meide Group are FM approved: R1TS, R1H, R1, R11, R1KX, R1X, C1TS, C11, C1, C1X, CH, MT2, MTL2, MT3, MTL3, MT3X, RTL, RTX, T1X, CTRX, RC, CP, GF16.