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Pre-sale service

More than 10 years of filtration industry experience engineers 7*24 hours online

Free CAD engineering drawings

Online assistance to customer selection, check model

Free online mapping instruction


After sales service

7*24 hours response, solve customer problems anytime, anywhere

Senior engineer remote guidance

Has a number of state-owned enterprises R & D elite, technical chief

Multiple department collaborative tracking services throughout the order

Product problems only change