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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.Reiterate the conclusion that this entry has no effect at all. The so-called right above is also not effective. Just pass off this entry directly.依然没人回答。"Liang Yi" ABO Bar Don't Come in Without Meat [Joking]静海市内，唐家先祖为保全大家英勇牺牲，只留下唯一的血脉唐宇，流落人间。身怀绝技的高手苍穹为布大局，接近唐宇收其为徒，授其武功。夏家千金夏诗涵由多次误会唐宇到被唐宇相救而心生好感，两人情感危机重重，姐妹同爱一人，前女友再次出现，展开了一段爱恨纠葛的世纪虐恋。而唐宇无意间得到一瓶药，开始卷入一场未知的迷局之中，平静的生活被打破，他开始拥有不同寻常的能力帮助他人，也逐渐探寻到自己的身世之谜。创作背景：2. Enter the auxiliary function interface and click "Apply Two Places at once" in the options.