All Bradford White commercial electric water heaters are listed by Underwriters Laboratories and bear the UL label.
所有美国百来福商用电热水器均通过美国UL安全认证，具有美国UL认证标志。
Any information and documentation involving UL Mark services are provided on behalf of Underwriters Laboratories Inc.
任何涉及保险公司标准服务的信息及文件都是代表实验室公司或者任何授权公司提供的。
Manufacturers of counterfeit products often use inferior materials and these "knock-offs" consistently fail independent certification testing from organizations such as Underwriters Laboratories (UL).
假冒产品制造商经常使用劣质材料，这些假冒产品往往是禁不住一些机构单独的质量认证检测，如美国保险商实验所(UL)的认证。
Manufacturers of counterfeit products often use inferior materials and these "knock-offs" consistently fail independent certification testing from organizations such as Underwriters Laboratories (UL).
假冒产品制造商经常使用劣质材料，这些假冒产品往往是禁不住一些机构单独的质量认证检测，如美国保险商实验所(UL)的认证。
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