Description: link to the website of the company; Name: website 
Description: web site address where information about the product or contact is given; Name: adress of additional link
Description: Speed that characterizes a pump in terms of its speed, flow rate per impeller eye, i.e. total flow for single-flow impeller, half flow for double-flow impeller, at the best efficiency point and head per stage at maximum impeller diameter ; Name: Specific speed