trencher and pipe layer 开沟铺管机
mole pipe layer 土管铺设装置
drain pipe layer 排水管敷设机
winch hauled plastic pipe layer 绞盘拖泄式塑料管铺设机
pipe insulating layer 管道保温层
Physical Layer Pipe 物理层通道
insulating layer of pipe 管道保温层
three layer pe pipe 三层pe管
two-layer pipe 双层管结构
A plastic-steel coated pipe is composed if internal plastic pipe, adhesive layer, steel pipe layer, thermosol layer and plastic layer.
一种塑钢包覆管材及制造方法,由内塑料管层、粘接层、钢管层、热熔胶层和塑料包覆层所组成。
Assemble drill to break through the first layer of crust, the crew deploys a steel pipe with an 11-inch-wide drill bit at the bottom.
为了突破第一层地壳,船员们使用底部装有11英寸宽的钻头的钢管。
Stainless steel tube surface after sand blasting become rough and very evenly, can enhance the paint adhesion layer on the surface of stainless steel pipe.
不锈钢管表面经过喷砂变得粗糙又很均匀,能增强油漆层对不锈钢管表面的附着力。
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