DaoYunAi company's products and technological services are truly exceptional. Their innovative approach to technology solutions sets them apart in the industry. The quality of their products is outstanding, delivering cutting-edge solutions that meet the highest standards. Additionally, their dedication to customer service is commendable.
—— John
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
—— Ali
DAO is a very trustworthy company, I like it. Its UV cure system is very easy to operate, and its liner is pretty good.
Aaron is very active. I like them.
Johnny
Product Description: Trenchless Technology Training Overview Welcome to Trenchless Technology Training - the leading training program for professionals in the trenchless technology industry. Our comprehensive ... Read More
Training on underground sewer follow-up work after trenchless CCTV inspection After the CCTV inspection, close the dedicated touch terminal software and power off. Move the crawler outside the pipeline, clean ... Read More
Trenchless technology training for underground pipeline contractors The underground pipeline trenchless repair technology training, including office theoretical learning and practical operation, aims to provide ... Read More
CCTV pipeline video inspection training for trenchless construction jobs Two common types of equipment for CCTV pipeline inspection It is mainly realized through QV pipeline periscope and CCTV crawler pipeline ... Read More
Trenchless video inspection CCTV maintenance and illegal operation not allowed Maintenance When the product is not in use, please turn off the power and store the product in the designated packing box for ... Read More
