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A low temperature stop valve, Unlike Example 1, Comprises a valve body 1 and a valve cover 2, A valve stem 3 is arrange in that valve body 1, One end of the valve stem 3 is provided with a valve disc 4, The other end of the valve stem 3 is provided with an adjusting handwheel 5, A low portion of that disc 4 is provided with a guide sleeve 6, The guide sleeve 6 is fixed by means of a connecting piece and a spring pad 8, A valve seat 7 is arranged between the valve disc 4 and the guide sleeve 6, a packing assembly 9 is arranged between the valve stem 3 and the valve cover 2, an O-ring 10 is further arranged on the upper part of the packing assembly 9, the upper part of the O-ring 10 is provided with a packing gland 11, the valve body 1 is provided with an arc-shaped end face 12, the arc-shaped end face 12 forms a line seal between the valve body 1 and the valve seat 7, and the contact end of the valve disc 4 and the valve seat 7 is provided with a water grain surface 41.Backup websites are not necessarily full-featured. If they can browse statically, they can meet the needs. At the very least, it should be possible to display a notice to tell users that there is something wrong with the website and that all efforts are being made to repair it. When my personal website went offline, I made a temporary homepage with a few simple lines of HTML code.大苞谷使劲摇头道：怎么会。爱丽丝一脸高兴，问道：过年有饺子吗？我最喜欢吃饺子了。　　《蚁族的奋斗》堪称“奋斗版的蜗居”，讲述的是时下草根青年艰辛的奋斗史，为此制片方银润传媒坚持要用年轻演员，而不是让大龄演员来“装嫩”。但是目前国内影视Variable value:.;