GY/VGD-200-C2H6O4S-G(0-10ppm)
GUOYUGRA GY/VGD-200-C2H6O4S-G (0-10ppm) Dimethyl Sulfate Detector
NBCLab takes or designs pictures, and embezzlement is strictly prohibited
[Statement] The pictures are for users' reference. Due to product upgrading or shooting level, please refer to the real object