CONCRETE TEST HAMMER ASTM C-805 Manufacture : MATEST ( Italy) Series : C 380 For rapid quality Control of Concrete works, with built in pointer scale and grapht for various angle. Dimension ( lxwxh) = 15x15x40 cm Gross weight : 3 kg Fungsi : Untuk memeriksa kualitas beton yang terpasang secara cepat.