zzkd новый многофункциональный небольшой лаборатории оксидирования алюминия, подъемные платформы для химических лабораторий металлическая ли

a supporting instrument suitable for adjusting object's height and location, used in the physics, chemistry and biology laboratory, etc. 1. use qualified stainless steel or aluminum to make. 2. novel design, anti-corrosion, faster rise and fall, durable to use. 3. high stability. surface of the lab jack could bear shaking and pollution. 4. whole structure is made of metal, firm to use. it should be kept clean and stored in a cool, dry and non-corrosive place after using.