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About us

 

 

Responsibility is always been our principle. We would like to let our client always feel comfortable

when use TOHO valves.

 

History

 

1957 SHENG AN VALVE MACHINERY

Mr. Tsao Tang Lin invested a factory in order to supply valves in this era of lack of supplies.

 

1976 SHENG AN VALVE MACHINERY CO., LTD.

With the increase in customers and turnover, the factory must be in the name of company to deal

more business and created TOHO brand.

 

1997 SHENG AN HANG VALVE MACHINERY CO., LTD.

From now on, Mr. Tsao Tang Lin own this company totally, we could follow our wish to improve

quality and service absolutely.

 

2000 ( 1year after 921 earthquake)

Take this opportunity, we invested some new machines instead of old machines and stand up again

from 921 earthquake because those old machines and building were buried in the earth.

 

2006 Valve Lab. Established

Since 2004, Mr. S.S. Lin served as Chairman of particular importance to the stability of quality and

customer satisfaction. He invested Brass Valve in China to do better service for all clients who may

has only small order and who cares valve quality.

2006 establish a Valve Lab. to control and maintain valve chemical and physical property in order to

let our client always feel comfortable when use TOHO valves.

Application and passed ISO-9000 at the same year.

 

2009 Lead-free (No Lead) Valves

Environmental protection and health and comprehensive response to the United States to promote

lead-free lines and valves, we study and began production of lead-free valves, and passed WQA

audit at the same year.

 

2014 DNV Marine Valve certification

In order to be better in the field of Marine Valves, we invested in studying more copper alloy material,

and pass DNV certification is our aim.

 

 

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