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1. According to the contents of the work order, pick up the relevant materials, assemble all the materials together according to the work instructions, and become a semi-finished product.


2. Code for each gas regulator. Laser code inlet, outlet, and production date on each model, which can be used for tracing the goods batch


3. According to the requirements of operation instructions, at the same time, the inlet and outlet parts are filled with gas of different pressures, and the outlet and intake air are connected to the oil cup and U-tube, and the U-tube water column is observed to rise and fall. Is there a bubble in the oil cup to determine if the product has leakage and the approximate position of the leakage point?


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