Tested and approved conformance with standard 1012 of the american society of sanitary engineers and by all principal cities , states and areas having these requirements 在美国所有主要城市、州和由这些要求的地区都通过检测和认证符合美国卫生工程师协会标准1012 。
3.
Tested and approved in conformance with standard 1052 of the american society of sanitary engineers and by all principal cities , states , and areas having these requirements 按照美国卫生工程师协会的标准1052和所有美国主要城市、州和地区的相关要求进行检测和认证。
4.
The independent testing bodies , american society of sanitary engineering and canadian standards association , have validated the valve ' s primary and preventative functions 独立的检测机构，美国卫生工程协会和加拿大标准协会，对于阀门的主要性能和预防性能进行检测认证。
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