On June 6, 2016 Sithiporn and Rion both signed the mutual rental agreement on Sound Calibration System to be installed at Sithiporn Calibration Laboratory for its future ISO 17025 service on sound level meter.
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451-451/1 Sirinthorn Road
Bangbumru, Bangplud Bangkok
Thailand 10700
Phone: (662) 433-8331
FAX: (662) 433-1679
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451-451/1 Sirinthorn Road