This is Elva from Shanghai Dynameters Co., Ltd. Glad to hear that you are interested in ultrasonic flow meters on skype last week. You ask me to send you the pictures & written material of Ultrasonic flow meter and they are in the attachment for your reference.I'd like to take this opportunity to introduce our company and products to you, with the hope that we may establish the business cooperation in the near future.DYNAMETERS is a professional manufacturer of ultrasonic flow meters:1. Transit-time ultrasonic flow meter2. Doppler ultrasonic flow meter,3. Ultrasonic water meter4. Ultrasonic heat meter5. Partially-filled pipe and open channel ultrasonic flow meter.More details, welcome:*****