Descriptions: 1. Made of polystyrene(PS), no bubbles, no impurities, more durable than other plastic. 2. With a PE cap, 2-positions, easy adjustment for aerobic culturing and anaerobic culturing(By loosening/tightening the cap). 3.
Descriptions: 1. Made of polystyrene(PS), no bubbles, no impurities, more durable than other plastic. 2. With a PE cap, 2-positions, easy adjustment for aerobic culturing and anaerobic culturing(By loosening/tightening the cap). 3.