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No.11 | No.12 | |
Study room (2) How to call refrigerants |
Study room (3) |
No.13 | No.14 | |
Study room (4) |
Study room (5) |
No.15 | No.16 | |
Study room (6) |
Study room (7) Another aim of vacuum testing (1) |
No.17 | No.18 | |
Study room (8) Another aim of vacuum testing (2) |
Study room (9) Another aim of vacuum testing (3) |
No.19 | No.20 | |
Study room (10) Prevention of hazards by liquid expansion |
Study room (11) Proper tightening of bolts and nuts |
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