1.central bench 2.Certifition:ISO9001,ISO14001 3.Material:wood and metal 4.Features:anti-acid,anti corrosion ... and resistant of the acid,alkali and the organic impregnant;3.Faucet:adopt the one-way faucet used specially for experiments ... and resistant of the acid,alkali and the organic impregnant;3.Switch:in high quality,it can open or close more than ...