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Figure A.
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Figure A.
Table A.
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Figure A.
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Figure A.
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Figure A.
Figure A.
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2.
4.
1 The sealer is complete, the surface is flat after assembly, and the seal is good (except for the vent hole of the straight safety device), and the top surface does not exceed the edge of the triple curling edge of the barrel
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A.
2.
4.
2 The closure must ensure interchangeability
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A.
2.
4.
3 The specification, quality, and installation position of the pass-through safety device should be correct, and the ventilation hole must be unobstructed
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