Daoyunai Energy Saving Technology Limited
Verified Supplier
4 Years
shanghai, shanghai
Since 2012
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UV CIPP Equipment
UV Cured CIPP
UV CIPP Lining
CCTV Pipe Crawler
Sewer Pole Camera
CIPP Water Inversion
CIPP Patch Repair
Trenchless Sewer Repair
Trenchless Pipeline Construction
Trenchless Technology Training
Pipe Packer
Water Jet Cleaning Nozzle
Trenchless Equipment Rental
Inflatable Pipe Plug
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Supplier Homepage > Products

PRODUCT CATEGORIES

UV CIPP Equipment

 (38)

UV Cured CIPP

 (19)

UV CIPP Lining

 (30)

CCTV Pipe Crawler

 (21)

Sewer Pole Camera

 (3)

CIPP Water Inversion

 (6)

CIPP Patch Repair

 (3)

Trenchless Sewer Repair

 (4)

Trenchless Pipeline Construction

 (8)

Trenchless Technology Training

 (7)

Pipe Packer

 (1)

Water Jet Cleaning Nozzle

 (2)

Trenchless Equipment Rental

 (2)

Inflatable Pipe Plug

 (2)

Drain Pumps

 (2)

Why Can We Always Ensure Excellent Quality

Quality Control

DAO has strict requirements for DAO products.

Daoyunai Energy Saving Technology Limited

Certification

Daoyunai Energy Saving Technology Limited Certifications
Standard: Utility Model Invention Patent
Number: 7588156
Issue Date: 2017-10-26
Expiry Date: 2027-10-25
Scope/Range: Trenchless pipe repair UV cure
Issued By: State Intellectual Property Office
Daoyunai Energy Saving Technology Limited Certifications
Standard: Utility Model Invention Patent
Number: 6707592
Issue Date: 2016-12-05
Expiry Date: 2026-12-04
Scope/Range: Trenchless pipe repair CCTV
Issued By: State Intellectual Property Office
Daoyunai Energy Saving Technology Limited Certifications
Standard: INTELLECTUAL PROPERTY MANAGEMENT SYSTEM CERTIFICATION
Number: 41920IP00045-04R0S
Issue Date: 2020-04-29
Expiry Date: 2023-04-28
Scope/Range: Production and sales of pipeline inspection and trenchless repair equipment intellectual property management involved in the R&D
Issued By: HUAYI certificate center
Daoyunai Energy Saving Technology Limited Certifications
Standard: Utility Model Invention Patent
Number: 4055846
Issue Date: 2014-09-15
Expiry Date: 2024-09-14
Scope/Range: Trenchless pipe CCTV crawler
Issued By: State Intellectual Property Office
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