You can use the following email for general information:
Technical question, request of detail, suggestion, propose ideas for new product, proposal of collaboration and any other item related to the technical arguments:
Question related to the sales, presales query, commercial request, special orders, personalizations or request of pro-forma invoice you can contact Mrs. Spring at this email address:
Simple Interface Trade Co. Ltd.
Address: 1015, 9th Liyuan Road,