We have our own sales team, design team, technical team, QC team and package team. We have strict quality control procedures for each process. Also, all of our workers are experienced in printing field for China CO2 Carbon Dioxide Detector, , , ,. We are willing to cooperate with business friends from at home and abroad and create a great future together. The product will supply to all over the world, such as Europe, America, Australia,The Swiss, Bangkok,Slovakia, Argentina.We have been making our products for more than 20 years . Mainly do wholesale , so we have the most competitive price , but highest quality. For the past years , we got very good feedbacks , not only because we provide good products , but also because of our good after-sale service . We are here waiting for you for your inquiry.