plate-loading test with a central hole
backward extruding by a disc with a central hole
extruding the ingot backward by a disc with a central hole
curtain grouting test hole
water injection test hole
Agglutination test in test tube
CHL test Micromucleus test
TA test thyroglobulin aggregation test
TC fluorescence test tetracycline fluorescence test
test and perforation combining test
test with notched test piece
Mono-thermal test and bithermal test
A shrinkage method combining with medium-length hole and shallow hole