带连接弯管的齿轮油泵  gear oil pump with connecting bend pipe

可弯管连接  flexible-pipe connection

连接弯管  connecting elbow

吸尘器弯管连接头  vacuum cleaner plastic tube splice

接管连接部位  nozzle conjunction location

O型圈弯管接头  o-ring elbow

薄壁管弯管工具生产技术  technology of manufacturing bending tool for thin-walled tube

出油管弯管  flowline bend

带内外螺纹的弯管接头  street elbow

导管弯管  conduit bend

冷弯弯管机  cold-bending machine

连接弯梁  connect camber beam

连接弯头  connecting bend

排气岐管弯管  exhaust manifold elbow

三节斜接弯管  3-piece mitre bend

受弯连接  moment connection

铜管弯管机  Copper pipe bender

弯管、弯头  Elbow

弯管管壁减薄率  bend wall dethickness