Holder without clamp
  Burette holder
  Holder of cooler
         
Filtration rings
  Boiling rings
  Cross clamp
         
Laboratory stand with plate
  Universal stand Bunsen
  Boiling tripod
         
Test tube holder
  Test tube rack
  Hofman hose clamp
         
Repumping siphon of hardened PVC
  Flame diffuser
  Laboratory burners
         
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