... 流差 Difference，current 差动锤 Differential acting hammer 差动桩锤 Differential acting pile-hammer ...
基于8个网页-相关网页
differential acting steam hammer 差动汽锤
Differential acting pile-hammer 差动桩锤
differential-acting pile hammer 差动打桩锤
Hammer pile differential-acting 差动椿锤
differential-acting pile-hammer 复动打桩机
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