Tender For supply of moulded ultrasonictransducer of frequency 25khz and 50w power thermoformed housing , moulded ultrasonictransducer of frequency 40khz and 50w power with thermoformed housing , moulded ultrasonictransducer of frequency 25khz and 50w power with anodized aluminium housing , moulded ultrasonictransducer of frequency 40khz and 50w power with anodized aluminium housing , moulded ultrasonictransducer of frequency 25khz and 100w power thermoformed housing