痔瘡出血怎麼辦 相關
廣告
搜尋結果
Hammer Tapping Test. Hammer Tapping Test. Tapping test is used to detect the spalled and debonded concrete or tiles on the external wall, internal wall, deck, etc. Defect can be identified by listening to the ‘void’ sound. A range of tapping tools can be chosen for different location and condition.