Professional hplc vials with caps with patch for GC. Crimp Cap Vial at gc vials and caps supplier Scientific vials feature write-on patch with graduations at 0.5,1.0 and 1.5mL Target ColorBand™ crimp top vials feature color-coded graduated write-on patch Vials with an 11mm crimp finish require aluminum seal closures Crimp/snap vials can be used with either 11mm aluminum seals or Snap-It
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