Armed with advanced equipment for material testing, like microcomputer -controlled steel strand testers (100T), rubber pressure shear testers (1000T), microcomputer-controlled, static-load anchor tension testers (1000T), various models of microcomputer-controlled, electro-hydraulic servo universal testers, various models of microcomputer-control electronic universal testers and gyratory compactors, Seven Star Engineering Testing Company, a subsidiary of ATCDI, is a Class A test institution for all parameters of materials used in road works.