标题:铁拳5DR风间仁初心者攻略 by MASATO
作者:MASATO
时间:7/24 21:12

下载附件，解压缩所有文件到一个目录，
然后打开html文件观看。

http://pic.yupoo.com/yy113lena/2e6e0fde3f2d/tlsfmzqo.jpg

[ 本帖最后由 MASATO 于 2009-7-24 21:24 编辑 ]

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#1 [haoyz9 8/17 15:26] 回复本帖
PFA lined ball valve (Perfluoroalkoxy) was developed in order to achieve a true melt-processable fluoropolymer. Its characteristics are such that in service it can be considered as interchangeable with PTFE in terms of its chemical service and temperature and pressure duty. It has the highest permeation performance of the fluoropolymers, exceeding that even of paste extruded PTFE. It also provides the smoothest and least wettable finish of all of the Fluoropolymers. Unfortunately the trade-off is cost, the material being more expensive than PTFE.

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#2 [枫小子！ 8/20 22:18] 回复本帖
谢谢LZ的贡献！！！

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