fiberglass reinforced plastics tube  玻璃钢软管

plastics tube filled with concrete  塑管混凝土

Aluminum-Plastics Clad Tube  铝塑复台管

Aluminum-plastics composite tube  铝塑复合管

Copper tube covered by plastics for isolation  塑覆保温铜管

shoulder injection mold of aluminum-plastics composite flexible tube  铝塑复合软管注肩模

zinc-coated tube with plastics inside  外镀锌内涂塑管件

recessed tube-tube sheet  管子内缩管板

Tube-Tube Electrode  管-管电极

Tube-Tube Plate Welding  管子管板焊接

Tube-Tube Sheet  管－管板

test tube test tube brush test tube holder test tube rack  试管

connection of tube and tube sheet  管子与管板的连接

double tube double tube-plate heat exchanger  双管双管板换热器

Framed tube supported on frames-core tube  框支框筒

gas tube (=gas-filled tube)  充气管

Heat Exchange Tube and Tube Sheet  换热管与管板

integrated tube-box shell-and-tube heat exchanger  集成管箱型管壳式换热器

roentgen tube (X-ray tube)  X-射线管; 仑琴管