Hello everyone, I’m uncle Cha, chief editor of standard Cha, and I’m also an engineer with an attitude
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618 this standard collection activity has been carried out for some time
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This 1000 + specification is based on 618 specification, adding municipal (239), road and Bridge (110) and national product specification (73)
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1040 copies in total! As in the past, the information provided by the standardized search is the result of a long period of collation with reference to official information, content and classification
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I hope I can help you
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The following is how to obtain the 1000 + directory of this standard (if there is any error or omission, please contact the activity administrator)
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