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New o ring standard profile
New o ring
New environment detects the ring marking a third party
Beijing new o ring(简称"AST")Is a focus on the environmental testing field,Business including water quality、The soil、Sediment、Hazardous waste、Solid waste、Ambient air and exhaust gas、Noise、Vibration、Electromagnetic radiation and clean room environment sample collection and laboratory analysis of environment detection institutions。New o ring mark wish is to support the sustainable development of the enterprise for the customer,Let customers more focus on the development of core business,From environmental testing......

Environmental test question and answer

Testing standards

The content of environmental monitoring