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ASTM D36 Top Quality Asphalt Softening Point Tester/Bitumen Ring-and-Ball Apparatus, Find Details and Price about Asphalt Softening Point Tester Softening Point Tester from ASTM D36 Top Quality Asphalt Softening Point Tester/Bitumen Ring-and-Ball Apparatus - Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd.