How to identify the crime of embezzlement and fraud in the private engraving of official seals in the commercial concrete industry?

Hardened gear reducers for cement industry Part 3: Kiln reducers; Test method for expansion of coarse aggregate for concrete; Silica aerogel powder for mortar; Terminology of alkali-activated cementitious materials; Test method for compatibility of cement and water reducing agent; Concrete block and concrete brick masonry mortar; Decorative concrete block are included in the plan of upgrading traditional industrial standard projects.