ORIGINAL SCHMIDTÂ ® The H-2975, Type N Hammer is designed for testing concrete items 4 " ( 100mm) or more in thickness, or concrete with a maximum particle size less than or equal to 1.25 " ( 32mm) ....
See more »Indoboemen yang Bergerak di bidang alat-alat survey dan navigasi, Alat Pertambangan seperti : Total Station, Theodolite, Automatic Level, Binoculars, Kompas, Clinometer, Altimeter, Suunto Tandem, ....