In China, 150 x 300 mm specimen jars are primarily manufactured as heavy-wall laboratory glassware, often made from borosilicate glass for thermal and chemical resistance. These jars are widely used for preserving animal and plant specimens, sample display, and educational purposes.

Key Product Features

• Dimensions: 150 mm outer diameter (O.D.) and 300 mm height.
• Material: High-quality Borosilicate 3.3 glass is standard to ensure durability and excellent air-tightness.
• Closure: Typically features a ground-in glass stopper with a knob to create a secure seal for long-term preservation.
• Design: Often cylindrical with a mouth that matches the full diameter of the jar, allowing for easy insertion of large specimens.