GY/VGD-200-4M-G（C6H6/C7H8/C8H10/EX）
GUOYUGRA GY/VGD-200-4M-G (C6H6/C7H8/C8H10/EX) On-line Gas Detector for refineries
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