Guangzhou Tianwen Optical Technology Co., Ltd., strictly selects the raw materials of polycarbonate blue light lens. We constantly check and screen all incoming raw materials by implementing an Incoming Quality Control - IQC. We take varies measurements to check against collected data. Once failed, we will send the defective or substandard raw materials back to suppliers.

These products have accumulated stable regular customers with their seductive design, strong performance and friendly usage. Tianwen's products pursue high quality and competitive price, creating huge profit margins for customers. Meanwhile, they are rigidly tested by the third party, so the quality is assured. Based on the current market environment, we offer a variety of customizable choices for customers.

We always pay much attention to customers' opinion while promoting our Tianwen. When customers put up with advice or complain about us, we require workers to deal with them properly and politely so as to protect customers' enthusiasm. If it's necessary, we will publish customers' suggestion, so in this way, customers will be taken seriously.