1) The inspection platform is suitable for various inspection work and serves as a reference plane for measurement; Used as a benchmark for mechanical inspection and measurement of machine tools; Checking the dimensional accuracy or shape deviation of parts and making tight lines is also an essential basic tool in mechanical manufacturing.

2) Classification: Flat plates, also known as platforms, are divided into cast iron flat plates and granite flat plates according to their materials. They are also divided into inspection flat plates, marking flat plates, and 1) high-strength cast iron HT200-300 according to their uses. The working surface hardness is HB170-240, and the accuracy is carried out according to the standard metrological verification regulations, with four levels of 0, 1, 2, and 3 respectively.

3) The surface quality inspection of the inspection platform is carried out through the use of colored hair. Level 0 and Level 1 tablets shall have no less than 25 points on each side within a range of 25 millimeters square, Level 2 shall have no less than 20 points, and Level 3 shall have no less than 12 points. The specifications of the inspection platform shall be 200 × 200-2000 × 4000 (specifications shall be made according to the buyer's drawings).

Hebei Shengding mainly produces cast iron productsTesting PlatformCast irondrawOnline platformCast ironRiveting platformCast ironAssembly platformPower mechanical vibration test bench (also known as slot iron or ground beam)ground rail）TheCast iron square boxInspection rod VXingtieGranite platforms (rock platforms) and other rock measuring tools. Marble slabs, marble measuring tools, bed castings, cast iron square boxes, assembly slabs, foundation platforms, deflectors, shims, plug ring gauges, large cast iron platforms.