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| Delete | 1 | GB/T 21411.1-2014_ENGLISH | Downhole equipment for petroleum and natural gas industries -- Progressing cavity pump systems for artificial lift -- Part 1: Pumps | 1 | 13 | 2159 | | Need to translate |
| Delete | 2 | GB/T 21321-2007_ENGLISH | Method for determination of avermectins residue in animal origin food -- Immunoaffinity -high performance liquid chromatograph | 1 | 3 | 189 | | Need to translate |
| Delete | 3 | GB/T 21410-2008_ENGLISH | Petroleum and natural gas industries -- Downhole equipment -- Lock mandrels and landing nipples | 1 | 4 | 879 | | Need to translate |
| Delete | 4 | GB/T 21320-2007_ENGLISH | Method for determination of avermectins residues in animal origin food -- LC-MS-MS | 1 | 3 | 209 | | Need to translate |
| Delete | 5 | GB/T 21399-2008_ENGLISH | Evaluating rule of automatic control system for grain driers | 1 | 3 | 189 | | Need to translate |
| Delete | 6 | GB/T 21338-2008_ENGLISH | Certification requirements for practitioners of motor vehicle maintenance and repair | 1 | 3 | 559 | | Need to translate |
| Delete | 7 | GB/T 21326-2007_ENGLISH | Black sea bream -- Brood stock, fry and fingerling | 1 | 3 | 159 | | Need to translate |
| Delete | 8 | GB/T 21605-2008_ENGLISH | Chemicals -- Test method of acute inhalation toxicity | 1 | 4 | 489 | | Need to translate |
| Delete | 9 | GB/T 21383-2008_ENGLISH | Coefficient of initial retroreflected luminance of newly applied pavement marking and test method | 1 | 3 | 169 | | Need to translate |
| Delete | 10 | GB/T 21337-2008_ENGLISH | Geographic information -- Quality principles | 1 | 5 | 1119 | | Need to translate |
| Delete | 11 | SJ 20210-1992_ENGLISH | Capacitors, Electrolytic (solid electrolyte), Tantalum, (Polarized, sintered slug), tape CA420, Detail specification for | 1 | 3 | 219 | | Need to translate |
| More PDF Samples Total (USD) | 6339.00 |