The sampler completes the sampling, handling and distribution of production materials and intermediates according to GMP and EHS requirements, and completes the distribution and distribution of requirements among branches in time. On this basis, the division and sampling of various materials and intermediates are recorded as required, and the sampling area is managed as required. China Construction Education Association was established in 1992, with more than 1000 member units, and is affiliated to the Ministry of Housing and Urban-Rural Development. It is a national first-class social organization with legal personality registered by the Ministry of Civil Affairs.

China Construction Education Association is a non-profit professional social organization voluntarily participated by relevant departments, units, organizations and institutions of construction education. Under the leadership of the competent department of business, it serves the national construction educators, acts as a bridge between the government and enterprises, colleges and training institutions, and is the staff and assistant of the competent department of construction education.