ZD company, a membr of China Valve Technology, Inc. (CVVT Listed in NASDAQ), is specialized in developing and manufacturing low and middle pressure butterfly valve, ball valve, tilting disc check valve, gate valve and valves in special design.

ZD is member of:

China Valve Association

The China Water Association

The Hena Quality Association

We have:

ISO 9001 certificate since 1997

API certificate since 2000

CE certificate since 2002

WRAS certificate since 2006

ISO14001 certificate since 2007

API 6D certificate ince 2003

GOST certificate since 2010

Our products are sold and installed in:

China ---South East Asia

Europe ---Middle East

America ---Africa

We sincerely welcome all the customer at home and abroad to our company.