Welcome to DKK-TOA, and Yanaco analytical instruments Chinese site, where our objective is the fastest, most direct, most convenient way to provide customers with newer, better, more useful information.
Our products are involved in environmental protection, chemical, petroleum, electronics and other fields. Client sources include:  sewage treatment plants, oil refineries, petrochemical companies, steel mills, food processing plants, pharmaceutical factories, power plants, incineration plants and environmental engineering company.
 As a DKK-TOA and Yanaco the service aims and objectives, we will do our best to the requirements of the customer on time, reasonable to provide quality products and customer appointment of program design, production, and strive to do our best.
DKK-TOA’s main activities are in the development, manufacture, marketing and after-sales support of analytical and electronic instrumentation. We have approximately 600 employees. We have Sales, service & manufacturing operations in Japan, Asia & Europe. We have been making instruments for more than 50 years.
We have been distributing DKK products in many different industries. Now we have distributors in many cities such as Shenzhen, Shanghai, Xian, Beijing and Dalian, etc in China. 
  International Marketing Department Manager of DKK-TOA Corporation Mr. Kazuto Yamashita 
and all staff of Hsig-Wuei Enterprise Co., Ltd.

Our Clients:
DKK-TOA has clients across a broad range of industries which include
Water treatment & sewage plants.
Oil companies (refineries). 
Petrochemical companies.
Steel industry. 
Food processing & pharmaceuticals. 
Power generation industry.
Incineration plants. 
Engineering contractors

DKK-TOA China Office:
General Agent: Luckywell Int’l Corporation of Hsing-Wuei Group.
Add: A1001 room , No.1085 South, Pudong  , Shanghai, China
Tel: 86-21-68605118，68600118，58362505
Fax: 86-21-58353934
E-mail：hsu74730@ms17.hinet.net
　　　　cthsu@dkktoa.com.cn