The Gongdong test tube series is made of materials PP, PS. It is transparent, smooth, and highly chemically tolerant. Among them. the test tube made of material PP is resistant to weak acid, weak base, organic solvent, and high temperature, which can offer various specifications, flat bottom, round bottom, and various lengths.

est tube is made of superior PS material, it has good chemical compatibility. Adapted to storage for most of polar organic solvents, weak acids, and weak bases.