Wide Road Ahead! The Building of an Automobile by Henry B. Lent New York THE MACMILLAN COMPANY 1934 archive.org states as PD 设备 液压 机 水压机测试
SILHOUETTE GRAPHICS OF AN OIL PUMPING UNIT IN AN OIL WELL. IMAGE OF PUMPJACK IN THE SUNSET 石油 泵 pumpjack 石油泵矢量 ILLUSTRATION.eps
outline lineart jicjac work hydraulic lift working Hydraulic Lift clip art vector graphic can be downloaded for free 液压 电梯 剪辑 液压升降机
These images are part of a collection of work vehicles. This file includes line art of a "bucket" truck and a truck with a crane. These are done in a style of a collection of other vehicles available here 斗 起重机 液压 升降机及吊臂货车集团
factory people hydraulic press force mechanics labor testing workshop employees manufacturing workers Hydraulic Press Testing clip art vector graphic can be downloaded for free 液压 新闻 测试 Hydraulic Press Testing
outline lineart jicjac work hydraulic lift working Hydraulic Lift clip art vector graphic can be downloaded for free 液压 电梯 剪辑 Hydraulic Lift