Huierdun (Shandong) Intelligent Technology Co., Ltd. is one of the large-scale disposable lock manufacturers in China.

It specializes in the production of lead seals, bolt seals, plastic seals, cable seals, plastic padlock seals, cable tie, meter seals, animal ear tags, etc.. Having professional equipment for Shi Blockade more than 300 units, covering an area more than ten thousand square meters, Huierdun has now developed into a capable and comprehensive enterprise combinning R&D, design, production and sales.