This type test hammer is used to test the concrete compressive
strength of construction and bridge...
Specifications:
test range: ****0 Mpa
impact energy: 2.**7J (0.**5kgf.m)
impact stroke: *5mm
friction of slider: 0.**0.8N
spherical radius of impact pole: *5+/*1mm
calibration value on test anvil: *0+/*2
dimension: **8*D*4mm
weight: 1kg
