DAO is a very trustworthy company, I like it. Its UV cure system is very easy to operate, and its liner is pretty good.
DAO is my great partner.
Johnny
—— Johnny
DAO is my supplier for over five years. Its UV cure system and liner, its CCTV crawler are my great tools to finish trenchless repair underground pipelines.
DAO, Amazing!
Lily Zhang
—— Lily
I have been dealing with Daoyunai company for underground pipeline trenchless repair for almost seven years. I am the distributor in Jiangxi province. DAO always gives me support to win customers. Win-Win!!
Dongzhen
—— Dongzhen
It is very nice to do business with DAO and also Aaron is very helpful. DAO UV liner is very good, stable and fast to cure. I hope to visit your factory in 2023.
Ali
Dual blowers for expanding liner during trenchless renovation DAO blower unit uses two sets as one complete system to expand the pipe during the CIPP process. Blowing flow and pressure is very important for ... Read More
Large light dual-core for UV cure trenchless system using mercury technology Mercury technology for repairing municipal pipes is a typical application that is basically produced in Germany. DAO brand technology ... Read More
Small diameter sewer repaired by CIPP UV cure product trenchless No-Dig DAO UV cure system is in Integrated design, High integration!!! It is manufactured to repair underground small sewers, ranging from DN200 ... Read More
UV light train for trenchless cure underground pipeline DN200-600 This is used for UV CIPP cured trenchless underground pipeline repair, together with the system, it can cure sewers ranging from DN200 upto ... Read More
Stainless steel packer for blowing pipe during trenchless CIPP DAO also supplies UV cure system components for different users. Stainless steel packers are the key unit to cure liner during the process. Blowing ... Read More
Quiet and high-efficiency generator for municipal contractors CIPP D45 generator is especially for municipal contractors, which has low noise, and high efficiency. 100L diesel can work about 10 hours. This is ... Read More
Highly integrated UV cure equipment used to repair underground sewer by CIPP process DAO company independently designed and developed the UV cure equipment, which is highly integrated and specifically to repair ... Read More
NO-Digging repair underground sewer network by high and new technology CIPP UV Important items for UV construction The number of personnel per shift: It is suggested that there should be 10 persons, including ... Read More
Integrated UV-CIPP renovation truck for municipal drainage network D919 UV light cure integrated truck is for CIPP underground pipeline trenchless repair, independently developed and designed by Daoyunai ... Read More
Blowing hose for UV CIPP cure equipment used for trenchless repair sewers Turn on the blower and gradually increase the power of the blower to make the hose expand and fully open to ensure that it will not ... Read More