We are honored to announce that the official website of Zhejiang Pujiang Wushi Lock Co., Ltd. is now officially online. Here, you can learn about our latest product information, service introduction, industry trends and ...

1. ‌Chemical treatment‌Chemical polishing‌: Use acidic or alkaline solution to remove oxides and oil stains on the surface of the copper lock to restore its luster‌Passivation treatment‌: Form a dense oxide film on the s...

Lock body: usually made of brass (copper zinc alloy), with both hardness and corrosion resistance, containing precision components such as lock core and pin inside.Lock core: The copper lock core has multiple pin holes i...

1. Material characteristicsCopper lock: Copper has natural corrosion resistance, can resist environmental factors such as humidity and oxidation, and has a longer service life. Copper has better ductility and is easy to ...