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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, Between that disc 4 and the guide sleeve 6 is provide a valve seat 7, Between that valve stem 3 and the valve cov 2 there is provided a packing assembly 9, An O-ring 10 is further dispose at that upper portion 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, the contact end of the valve disc 4 and the valve seat 7 is provided with a water grain surface 41, the packing assembly 9 comprises a flexible graphite packing layer, the valve body 1 is provided with a liquid inlet cavity and a liquid outlet cavity, and the two O-rings 10 are respectively arranged on the inner side and the outer side of the packing gland 11.紫茄听了张大嘴巴，脸上神情不是害怕，而是惊愕。　　她以美貌与身材为武器，诱惑男人并利用。MyDoSth+=Print;Selected from: Futurism情同手足的四兄弟，感情素来很好，老三在城里待不下去想回来发展，就找家里的几个兄弟。在回来的路上，偶遇一路人三哥和虎哥那一帮人，虎哥的人从车上掷下一个包本想陷害三哥他们的，没想到的是，这个包让老三无意间给捡到了。老三幸运的以为自己这么轻而易举的发了大财，这下可以在兄弟面前大张旗鼓的吹捧下自己了。就因为这一个奇怪的包，然而它却大有来头，它牵涉着另一帮人利益交易。这帮人互相猜疑追究，三哥也是不知道，就让自己的人去寻找这个包，这一路上，与那四兄弟认识，并出了很多搞笑的事情。就这样，四个兄弟莫名其妙的遭到了他们的追踪和调查，从而卷进了这场纷争当中。但在这紧要危难关头，四兄弟齐心协力，福祸共享，患难与共。Zhejiang Province