Enterprises need to test the conditions of cast iron flat feet Enterprise self-inspection cast iron flat feet need to have the condition 1, need to have more than two members have verification verification certificate. 2 , first need to have cast iron flat rule verification device: electronic level and bridge board, 1 and 2 cast iron flat ruler with a graduation value of 0.01mm / m is also possible. 3. After the approval of the construction bid application, the municipal bureau will issue the measurement standard certificate before the verification of the cast iron flat rule. Cast iron flat feet often cause premature damage or accuracy errors due to improper use, so we must pay attention to the correct use of cast iron flat bridge type flat feet when using cast iron flat feet to extend the life of cast iron flat feet. When using a cast iron flat ruler, the flat ruler should be handled gently and placed firmly. It is not allowed to drag the working surface of the cast iron flat ruler on the surface of the measuring device. When hitting the horn, it is necessary to pick up the cast iron flat ruler. 4. If the external cast iron flat rule is verified, the technical information of the construction report (including: review application, resume, technical report, evaluation of uncertainty of measurement of cast iron flat rule, etc.) shall be provided. For details, please contact: http://ZTPCXL.html hydraulic fitting
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