1: This product uses high-quality alloy copper material to ensure that it does not rust;
2: Strict control of the physical properties of the material to ensure the pulling force of the product;
3: Flexible rotation and reasonable clearance, our quality assurance is derived from the continuous requirements of customers;
4: After professional polishing technology, the surface is more smooth, delicate and beautiful;
5: We can occupy the market for a long time, that is, to return our customers in time with integrity and dedication;
6: This product has complete models and better prices.