RKI Instruments / Riken Keiki Calibration kit, EAGLE, 34L calibration cylinder CO/CH4/O2/N2, 34AL calibration cylinder 2 ppm Chlorine/N2, 34AL cyl 0.5 ppm Phosphine/N2, demand flow regulator, screwdriver, case & tubing, part number: 81-5550RK-HLV / RKI Instruments / Riken Keiki Bộ hiệu chuẩn, EAGLE, 34L bình khí hiệu chuẩn CO/CH4/O2/N2, 34AL bình khí hiệu chuẩn 2 ppm Clo/N2, 34AL cyl 0.5 ppm Phosphine/N2, van điều áp theo nhu cầu, tua vít, hộp & ống, mã hàng hóa: 81-5550RK-HLV