TOPSUN (www.topsuncn.com) rooted from a trading company has more than 13 years experience in international business from the year of 1993. In 2001, TOPSUN invested & established its new factory for Designing & Supplying complete series of water meters DN15 up to DN500 conform with ISO4064 Class B/C/D, AWWA which all production flow controlled under ISO9001:2000 quality management system.
Depend on continued Research & Developing TOPSUN core...
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