ultrasonic equipment was used as shown in principle in Fig. 1. A piezoelectric ultrasonic transducer transforms a sinusoidal electrical voltage into mechanical longitudinal resonance vibration, where the resonance frequency of the equipment is 20 kHz.
105 Cells Seedling Tray for Plug seed Nursery trays, Seedling Starter Trays super useful for germinating seeds and successfully raising strong plants. It can keep the contact around the stem, sealing the cut tissue and supplying the hormones needed to pro
HDPE fender is widely used in various large、medium and small docks, which is suitable for freighter berth and tugboat berth. Useful life can be more than 50 years. To solve the problems of frequency replacement and maintenance.
Viton Rubber Compound is mixing of fkm fluoroelastomer raw gum, curing agents and other fillers. Our hot sale is O Ring Viton Compound and Viton FKM compound for bonding to metal.
Water-Soluble Ammonium Polyphosphate Flame RetardantAppearance: White, flowing powderSpecifications: Product Name AmmoniumPolyphosphate Test Standard
HG/T27...