螺纹

• Laboratory glassware - bottles - screw - neck bottles
  实验室玻璃器皿.瓶.螺纹颈瓶
• Threaded suction strainers without non - return valve
  无止回阀的螺纹连接的吸滤器
• Self - locking hexagon , slotted , thin nuts with mj thread
  Mj螺纹六角开槽薄自锁螺母
• Trapezoidal screw threads - part 2 : general plan
  梯形螺纹第2部分：直径与螺距系列
• Development of cold roll technology for threaded tube
  螺纹管冷轧工艺的研究和发展
• Reinforcing bar conjunction technique with rolling screw thread
  滚压直螺纹连接
• Rech . self - locking anchor nuts , two lugs . sim thread
  两耳自锁防松螺母. sim螺纹
• Diameters of drills for minor diameters of tapped threads
  攻螺纹内径用钻头直经
• Have all the joints been coated with thread compound
  所有接头都要涂上螺纹脂。
• Stub metric trapezoidal screw threads ; thread profiles
  米制短牙梯形螺纹.螺纹牙形