Tools for pressing . round punches with 60 degrees c conical head and reduced shank 冲压工具.带60锥形冲头和变径刀柄的圆冲头
Aerospace series - pipe coupling , welded , in heat resisting steel - reductors - inch series 航空航天系列.耐热钢制焊接管联接器.变径管.英制
Straight spokes ? the original spoke design with the same diameter across the entire length 直辐条（不变径） 。原本的设计，整条从头到尾直径不变。
Aerospace series - pipe coupling 8 30 ' in titanium alloy - ferrules with dynamic beam seal end , welded and reduced at pipe end 航空航天系列.钛合金管连接件8 30 ' .在管端焊接和变径的带动力横梁密封端头的环箍
Multi - arm caliper logging tool is mainly used for measuring inner diameter changes of the casings , provides evaluation data such as casing diameter changes , casing wall thickness , outer diameter variations of the casings , elliptic changes and equivalent damaging loading , etc 多臂井径测井仪主要用于测量套管内径变化，提供套管变径、壁厚、套管外径变化、椭圆变形及等效破坏载荷等评价资料。
This paper offers a method that can avoid the incorrect or rough methods mostly accepted now , and this method considers the temperature change along pipeline , the difference of friction loss in turbulence zone and the throttle effect in cross - section of reduced pipe 针对现有的静态仿真算法存在的错误和不足，提出了一种更为精确的仿真算法，该算法除考虑了管道沿线的温度变化、处于不同的紊流区摩阻损失的大小不同之外，还考虑了变径管道在变截面处存在节流效应等问题。
The company ' s main products include : ordinary - type , forward - and - backforward - thread typeandcalibre - changed type , three series and 50 - odd varieties of steel straight thread connecting sleeve piece and steel straight thread screw rolling machine , screw rolling wheel , cutting tool , reinforced thread head special gauge , moment spanner ect . , auxiliary tools which are used in construction 公司主要产品有标准型、正反丝型、变径型三大系列五十多个品种的建筑用钢筋直螺纹连接套筒和钢筋直螺纹（剥肋）滚丝机及滚丝轮、切削刀具、钢筋丝头专用量规、力矩扳手等辅具。
Because the structure of horomill is not prefect in practice , in the second section design horomill by consulting the structure of roller grinding and applying concurrent engineering , and empolders secondly autocad2000 by using visual basic 6 . 0 , and sets up parameter gallery of horomill . in the third section , the dynamic model of horomill is developed . the relationship equation between energy consumption and press , and the relationship equation among the diameter of the cylinder , the diameter of roller and the average particle size are established 由于筒辊磨的结构在实践应用中并不十分完善，本文参考了辊式磨的结构特点，利用并行工程技术设计出变径离心式辊碾磨机，并且应用visualbasic6 . 0对autocad2000进行了二次开发，建立了筒辊磨的参数化图库。
