Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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YB/T 9027-1994 Electromagnetic Detection Specification for Underground Pipelines via email in business day valid
CJJ 7-2007 Code for engineering geophysical prospecting and testing in city 3000.0 via email in 1~10 business day valid
DZ/T 0064.28-1993 Groundwater quality test methods - the determination of potassium, sodium, lithium and ammonium with ion chromatography method 60.0 via email in 1~3 business day valid
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