Guangrao cast iron square box Yantai cast iron flat ruler manufacturer Longkou cast iron bent plate price

Guangrao cast iron square box Yantai cast iron flat ruler manufacturer Longkou cast iron bent plate price Cast iron square box is mainly used for inspection and marking of parallelism and verticality of parts. The square box is a hollow cube with specific working surfaces made of cast iron. There is a groove on one of the working surfaces. The environmental conditions for square box verification: normal temperature and humidity
Each working surface of the cast iron square box must not have rust, scratches, cracks, dents, and other defects that affect the measurement performance. Non-working surfaces The edges and chamfers should be sanded and painted. There should be a sign on the inner wall of the square box with specifications, dimensions, factory number, manufacturer's name
Accuracy of cast iron square boxes: In addition to verifying the flatness of the scraped and developed square boxes, Coloring method is used to detect contact spots. The number of spots in a square with any side length is: Grade level is not less than dots Grade is not less than dots Processing and production
The cast iron square box is manufactured according to.-standard materials. It is used to inspect and mark the parallelism and verticality of parts. The universal square box is used to inspect or mark any angle line of precision workpieces
Specifications of the cast iron square box :(cubic/) cubic cubic cubic cubic cubic