Observation test on the exhaust gas processor
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Dear Haiyou community, have you ever seen or used this type of audition? I would like to know the names and standards of the two fasteners behind the tee in this photo; the diameter of this observation hole is 76 mm. Thank you!
I have used a hot water recovery device that comes with an observation mirror
HGS07-6C Standard for \"View Glasses\" – specifies the requirements for the design, manufacturing, inspection, and acceptance of pressure pipeline components.