fireproof letter box has undergone a sophisticated and precise manufacturing process offered in Dongguan Sanjiu luggage products Co., LTD. The product strives to offer the best quality and durability ever to make sure that clients will have no worry about products' performance and possible vulnerability. It is believed to have a long service life with improved toughness together with strong reliability.

We always actively participate in various exhibitions, seminars, conferences, and other industry activities, whether is large or small, not only to enrich our knowledge of the industry dynamics but also to enhance the presence of our Sanjiu in the industry and to seek more cooperation opportunity with global customers. We also remain active in various social media, such as Twitter, Facebook, YouTube, and so on, giving global customers multiple channels to know more clearly about our company, our products, our service and to interact with us.

As a company putting customer satisfaction the first, we are always standby to answer the questions involving our fireproof letter box and other products. At SANJIU, we have established a group of service team who are all ready to serve customers. They are all well trained to provide customers with prompt online service.