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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 35780.2-2017 |
Customer contact service—Part 2: Requirements for clients using the services of customer contact centres 顾客联络服务 第2部分：使用顾客联络中心服务的委托方要求 |
China National Standards Customer contact service—Part |
 English PDF |
| GB/T 35780.1-2017 |
Customer contact service—Part 1: Requirements for customer contact centres 顾客联络服务 第1部分：顾客联络中心要求 |
China National Standards Customer contact service—Part |
English PDF |
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