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인증된 전문가에게 직접 연결
인증된 전문가에게 직접 연결

Steel ball specification: 50 mm (GB308-77)
Falling height: 500, 1000 mm
Sand tray specification: 360×360×70mm (cubage)
Dimension (length X width X height): 430×370×789 (1289) mm
This device is used to mensurate the maximum impact strength that gypsum board can stand.