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Process of manhole size customization ！

Update:Sep 23,2021
Summary: The manhole size needs to be customized 1. Inquiry stage: confirm the price and delivery date 2. Drawings issued by the factory shall be confirmed by......
The manhole size needs to be customized
1. Inquiry stage: confirm the price and delivery date
2. Drawings issued by the factory shall be confirmed by the customer
3. Arrange production
4. Sample taking and customer confirmation
5. Send samples
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