test tube


      Material: borosilicate glass
      Size:12*75mm  10*100mm  12*100mm  13*100mm  15*100mm  15*150mm  18*180mm
      Volume:2ml  5ml  10ml  15ml  25ml  50ml
      High accuracy
      Round bottom or flat bottom
      Screw mouth or grinding mouth 
      With or without lid (plastic、cork、silica gel)
      Strong Hardness, High temperature resistance, can work under 1200°C continuously

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