drop hammer
... drop-hammer 吊锤 drop hammer 单作用锤 ; 落锤 drop pile-hammer 打桩的落锤 ...
基于40个网页-相关网页
单作用锤头 single-acting ram
单作用蒸气桩锤 single acting steam hammer
单作用气动桩锤 single acting pneumatic hammer
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