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4.3 General Standards
4.3.1 Scope：the quality acceptance of the erection project of pipes for the thermal power plants.Visual examination and cleaning of pipes is shown in Table 4.3.1-1，The prefabrication of pipes is shown in Table 4.3.1-2.The inspection and erection of valves is shown in Table 4.3.1-3.
4.3.2 Inspection quantity：detailed inspection shall be carried out according to the items.
4.3.3 Quality criteria：in accordance with the requirements in Table 4.3.1-1 to Table 4.3.1-3.
Table 4.3.1-1 Visual examination and cleaning of pipes
Table 4.3.1-1（Continued）
Table 4.3.1-2 Prefabrication of pipes
Table 4.3.1-3 Inspection and erection of valves
