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GB/T 10119-1988 Copper－zinc alloys－Determination of dezincification corrosion resistance 
  Issued on: 1988-01-02   Price(USD): 180.0
GB/T 10118-1988 High purity gallium 
  Issued on: 1988-01-02   Price(USD): 180.0
GB 9946-1988 Dimensions,shape,weight and tolerances for hot-rolled L-sectional steel 
  Issued on: 1988-09-20   Price(USD): 45.0
GB/T 10117-1988 High purity antimonium 
  Issued on: 1988-01-02   Price(USD): 180.0
GB 9441-1988 Metallographic test for spheroidal graphite cast iron 
  Issued on: 1988-06-25   Price(USD): 270.0
GB 9788-1988 Hot-rolled unequal-leg angle steel-Dimensions,shape,weight and tolerances 
  Issued on: 1988-09-05   Price(USD): 165.0
SY/T 5745-1995 Major terms of oil & gas production engineering 
  Issued on: 1995-11-18   Price(USD): 915.0
GB/T 11645-1989 Drilling fluid degassers 
  Issued on:   Price(USD): 60.0
GB/T 11646-1989 Drilling fluid cleaners 
  Issued on:   Price(USD): 45.0
GB/T 11647-1989 Drilling fluid hydroclones 
  Issued on:   Price(USD): 150.0
GB 3638-1983 Transmission roller chains for oil-field drilling rigs 
  Issued on:   Price(USD): 130.0
GB 4775-1984 Tool joints for drill pipe for oil or natural gas wells 
  Issued on:   Price(USD): 1224.0
GB 7229-1987 Sucker rods and their couplings 
  Issued on:   Price(USD): 310.0
GB/T 16750.2-1997 Electrical submersible pump-Technical specifications 
  Issued on: 1997-03-04   Price(USD): 210.0
GB/T 16750.3-1997 The test method for electrical submersible pump units 
  Issued on: 1997-03-04   Price(USD): 370.0
GB/T 16750.1-1997 The types, general parameters and conjunction sizes of electrical submersible pumping equipment 
  Issued on: 1997-03-04   Price(USD): 220.0
GB 11649-1989 Beam-pumping units 
  Issued on:   Price(USD): 270.0
GB/T 4702.16-1988 Methods for chemical analysis of chromium metal--The infrared absorption method for the determination of sulfur content 
  Issued on: 1988-02-21   Price(USD): 180.0
GB/T 4702.17-1988 Methods for chemical analysis of chromium metal; The combustion-neutralization titration method for the determination of sulfur content 
  Issued on: 1988-02-21   Price(USD): 180.0
GB/T 4702.1-1997 Methods for chemical analysis of chromium metal the ammonium ferrous sulfate-volumetric method for the determination of chromium content 
  Issued on: 1997-1-1   Price(USD): 130.0
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