Inquiry (采购产品): hydraulic Pipe flanges Dear Sir, This is mail is to get more information of "Why high pressure hydraulic pipe flanges are square type and not the usual round ones. I tried many books but could not get any information. If you are aware of the reason for the said shape, please do advice me too. This is only out of curiosity. Thanks and best regards Suresh **** Hidden Message ***** Suresh kurup London London LondonGBR Company: Shell international E-mail: suresh.kurup@shellmail.com **** Hidden Message ***** suresh.kurup@shellmail.com