Inquiry (采购产品): CHART No. M-2000-H the chart pool M-2000-H, are in linear scale (diff in water) and the other in which scale is ( pressure lbs)? What is the difference between the chart pool M-2000-H and chart MC L-10?? I thank you for your help **** Hidden Message ***** Luis Lasluisa 352 Company: Corporacion Pegaso E-mail: lasluisa_luis@hotmail.com **** Hidden Message ***** lasluisa_luis@hotmail.com