Our company special make hot film air flow sensor. If you are interested with our items. Don't hesitate to contact with me. We can supply more information about our products. Before start business, we can send any you are interested air flow sensor as test, If you are satisfy with our quality. Then we can talking more other question in the business. I believe if you are try to contact with me. You will be find we are a good supply in china. Because our quality and service had good confirm with our customer in the marketing. So you will be glad to do business with us. You kindly contact me is our honoured.