Alias: cast iron square to square, vertical flat-foot cast iron vertical square foot at right angles to rely on foot 90 ° Square 
 Foot rectangular: square classes, including special tools, feet, bending 90 ° for vertical test machine tools, machinery and equipment and parts, installation of processing position, crossed an important measurement tool in the machinery industry, which is characterized high precision, good stability, ease of maintenance. 
 Foot rectangular http://www.bthxzw.com/zhijiaochi.html 
 Foot rectangular: manufactured according to GB6092-85 standard, material HT200-250, is mainly used for the inspection and marking of the workpiece at right angles, installing and adjusting of equipment, inspection, parts or components on the surface of the vertical degree. 
 Foot rectangular: the measurement surface and the basal plane perpendicular to each other for inspection at right angles to the vertical and parallel error measuring apparatus, also known as 90 ° Square. 
 Rectangular device with at least one right angle and two or more straight edge used for drawing or testing right angles tools. Also known as "Norma". 
 Measuring - square is a professional measuring, referred to as the Square, also known as on foot in some cases, material can be divided into cast iron square, Mg foot rectangular granite foot rectangular, it is used to detect workpiece the verticality and the verticality of the workpiece relative position, and sometimes for the dash. Applies to the vertical test of machine tools, machinery and equipment and parts, install the processing position, crossed an important measurement tool in the machinery industry, which is characterized by high precision, good stability, ease of maintenance. 
 Cast iron square class of special tools, including the feet, bending 90 ° for vertical test machine tools, machinery and equipment and parts, installation of processing position, crossed an important measurement tool in the machinery industry, which is characterized by precision good stability, ease of maintenance. 
 Granite rectangular device, made of quality "Jinan Qing" stone machining and hand grinding. Shiny black, structural precision, uniform texture, good stability, high strength, high hardness, in the bottom of heavy-duty and general temperature precision, and has no rust, acid and alkali, abrasion resistance, not magnetized, the same type advantages. Used for the detection, measurement, line, equipment installation, construction of industrial engineering. 
 Foot rectangular http://www.bthxzw.com/zhijiaochi.html 
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