加拿大外贸
样品发给客户之后，客户做了个什么检验，下面是详细的检验过程说明，一些细节不是很明白。我这英语水平有限，怕弄错了，希望高手帮忙翻译。谢谢We started twice to run (3) samples each of the 6FL’s through our test protocol. This calls for 3 full thermal shock cycles to be run from +250°F to 0°F. The valves are soaked for a full hour at 250°F and removed from the temperature chamber and leak tested. They are allowed to normalize back to room temperature and retested again before being soaked at 0°F. Even if the valve fails at one of these temperature extremes, we consider it to pass if it recovers and tests good at room temperature. This is considered to be one full thermal shock cycle. We do this then for a total of three full times. A mix of 250 manual cycles is also conducted throughout the hot /cold testing. This is the way the standard “CS” ball valves were originally qualified.
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高人呢，有木有，有木有？？？
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自己顶一下
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碳钢球阀的热冲击测试，客户做了3轮，极限温度为华氏250高温和0低温，测试泄露，同时在常温测试泄露
加拿大电商做区块链为什么都注册新加坡基金会 目前做区块链项目的客户都会通过注册基金会来作为项目的主体，为什么都在新加坡注册基金会，首先性价比高，而且新加坡市场也比较成熟，项目 加拿大电商露天电影首发——葡中双语字幕《中央车站》 http://bbs.shanghai.com/thread-1714999-1-1.html screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoo
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