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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.板栗欣喜地叫道：淼淼，你醒了？秦淼见他下巴上钻出一层浅浅的胡子渣，虚弱地笑道：板栗哥哥，你……没睡？胡子都……出来了，也好，更认不出来了……她声音如蚊蝇，仿佛从遥远的地方传来。第一季里邀请大学同学的李俊基（李伊庚 饰），这次把魔手伸向高中同学。讲述了无业游民记者和破产律师，为蒙受冤屈的人们向违反法律和原则的搜查机关与司法机关进行愉快反击的故事。才道：请王爷放心，老朽自会教导他。