single acting pile hammer 单动打桩锤 ; 单动桩锤 ; 单动式打桩锤

double acting pile hammer 复动桩锤 ; 双动式打桩锤

single-acting pile-hammer 单动式打桩槌

Differential acting pile-hammer 差动桩锤

differential-acting pile hammer 差动打桩锤

double-acting pile hammer 复动桩锤

single-acting pile hammer 单动打桩机

differential-acting pile-hammer 复动打桩机

single acting pile hammer WESTBANK 单动桩锤