问题描述：
英语翻译
bending machines,bending mandrels,internal pneumatic line up clamps,roller cradles,ditch pumps and much more.Darby also handles all types of pipeline supplies such as external clamps,beveling machines,spy holiday detectors,lifting belts,pipe hook
bending machines,bending mandrels,internal pneumatic line up clamps,roller cradles,ditch pumps and much more.Darby also handles all types of pipeline supplies such as external clamps,beveling machines,spy holiday detectors,lifting belts,pipe hook
问题解答：
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