Shenzhen Shun Ze Yuan Industrial Co., Ltd is wholly-owned subsidiary of ZTK Co,.LTD .We have been in Mobile Phone Spare Parts for more than 12 years. Superior quality & Comepetitive prices & AAAAA Customers Service Make ZTK to be one of the biggest suppier in Cellphone parts field. ZTK has a lot of experience in cellphone parts, we can help your bussiness to be more Efficient and become easier. What's more ,ZTK is doing an Environmental Protection case,recycling defective Electronics.