Keerke Impulse Valve Manufacturing Co., Ltd Address: Shangsong, suburb of Fenghua, Ningbo Postcode:315500 Tel:+86-574-88976821 +86-574-88965821 FAx:+86-574-88983988 Tel for after sales service:(0)13777270668 QQ:664367279 Website: http://www.nbkek.com                  http://www.xxypc.com E-mail:sales@nbkek.com