Non-destructive testing of steel tubes. Automatic eddy current testing of seamless and welded (except submerged arc-welded) steel tubes for the detection of imperfections— 18 стр.
Non-destructive testing of steel tubes. Automatic ultrasonic testing of the weld seam of electric welded steel tubes for the detection of longitudinal imperfections— 14 стр.
Plastics. Heatshrinkable films of polyethylene, ethylene copolymers and their mixtures. Determination of the shrinkage stress and contraction stress— 12 стр.