This is an inquiry message about hardware in the 108th China Canton Fair. (这是一条买家关于"hardware"的询盘信息，来自第108届中国广交会。)Inquiry Message (询盘信息) hardware Can you forward us a catalog. As far as I can see you have no web site that is working, is that correct. We are searc" Ball Type Non-return Valve Contact Info (联系信息) Dear Sir, We would like to know the possible pressure drop across a 4"" ball type non-return valve. Regards Samir Ganguli Samir Ganguli <br /> 700071 <br /> <br /> Company: CFI Technologies Pvt. Ltd.<br /> E-mail: sganguli@cfie-cfit.com
