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This document is the Hollis REGULATOR OWNER'S GUIDE(diving equipment manual), which mainly introduces the use methods and precautions of diving equipment.
This manual introduces the use of Hollis Regulator, including functional characteristics, specifications, precautions for use, maintenance and maintenance
This manual is for the owner of the Hollis life jacket, introducing the use of the life jacket, the use of precautions, maintenance and maintenance methods, etc.