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contact informationshenzhen chuang an shun traffic equipment co., ltd. address: second floor, donghaiwang block b, bulong street 369, bantian, longgang district 518129, shenzhen, china the national toll free hotline: 400-0098-122 24 - hour telephone: 0086-0755-61597612 fax: 0755-28447478 24 hour customer service hotline: 0086-13699831797 email: [email protected] web site: http://www.cas122.com | ![]() |