
High Quality Wholesale Roller Shutter Security Door Lock with System. Superior Dust Protection: Features a dust proof cover to protect the cylinder from dust and debris. Anti-Corrosion Material: Constructed from aluminum alloy, brass, or iron, ensuring high quality and rust resistance. Flexible Customization: Offers full, minor, and flexible customization options from samples or designs. High Production Capacity: Capable of supplying 100,000 pieces per month with a peak season lead time of one month. ISO9001 Certified Quality: Manufactured under ISO9001:2015 certification with 100% visual and function inspection. Fast Sample Delivery: Sample time is only 3 days for quick evaluation and testing. Secure Locking Mechanism: Emergency lock system allows unlocking by pulling the cylinder connected with a cable. Established Manufacturer: Backed by 28 years of export experience and 56 QA/QC inspectors.