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A packing assembly 9 is arranged between the valve stem 3 and the valve cover 2, the 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. The arcuate end face 12 forms a line seal between the sealing surface of the valve body 1 and the valve seat 7. The water grain 41 can ensure the sealing performance of the valve seat 7 and the valve disc 4.ハッピーバースデーツー・マイホーム 役所広司 岩崎良美Stop it. What's going on怕是不能常回家，也不知哪天才能回家。Extinguish Application Layer Attacks Internally本剧改编自畑亜希美同名漫画，讲述了30岁公司职员森山志乃（松井玲奈饰），不管是工作还是恋爱的她，大致上已经拥有很多经验，如今到了结婚意识的年龄，却突然接到比自己小9岁的佐藤真雪（铃木仁饰）的告白，并以“直到有了结婚对象为止”为条件开始交往了......