The spiral groove of pipe is formed by press die.
采用冲压模具实现了管材螺旋槽成形.
Plastic wrinkling is a typical defective mode during the THF.
塑性皱曲是管材内高压胀形工艺的一种典型失效形式.
We are mainly produced Xinnuo PP - R tubings, pipe units and plumbing fittings.
公司主营信诺牌PP-R管材 、 管件及水暖配件等.
This factory also produces various engineering plastic tubes and sectional materials.
我厂还生产各种工程塑料管材、异型材.
The process for preparing TC 4 thick - wall tube by radial forging was studied.
研究了用径向锻造方法制备TC4 厚壁 管材的生产工艺.
The optimal design of convergent channel of extruder tubular head was discussed.
应用粘性流体的基本理论,分析了聚合物材料在管材机头流道内的流动.
It adopts outer pipe co - extrude technology, improving the joint stress among layers.
采用的外管共挤技术, 提高了管材的层间结合强度.
Thevelationship between pipe size and welding power and design program are analyzed.
并以实例说明焊接管材与功率等的定量关系和设计计算过程.
Tube bending is the most commonly used technology of tube forming.
管材弯曲则是一种最常用的管材塑性加工方法.
The high - density polyethylene pipe is a new type of tubing.
雨水管所采用的高密度聚乙烯管是一种新型管材.
Familiar with stainless steel and carbon steel plate and tube welding.
熟悉不锈钢、碳钢材料的管材、板材的焊接.
Adopting the crowded nose increases the tubing sign streak.
采用共挤机头,增加了管材标色线.
Our tubes are produced through the process of vacuum smelting.
本管材是经过真空熔炼而制成的.
Other pipes are PP - R pipe and fittings with thermal connection.
其余给水管材均采用PP -R 管及管件,热熔连接.
Tubing : usually round in cross - section , and also shaped in section.
管材 -- 一般横断面为圆形+也有异形.