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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.该剧讲述了神秘转学生及杀手“冬天”与曾遭心灵创伤的高中生“夏天”相遇一起追踪犯罪组织，以为是粉色之光，结果是血色之光的校园生活爱情动作故事。Join the army of chasing more. Although I have long been accustomed to paranormal, it is the first time I have seen this type of paranormal.I waited quietly for a while. Zhao Mingkai recalled it and organized the language. Only then did he open his mouth and said:　一名女演员即将演绎法国著名女歌手芭芭拉的生平。女演员很努力地学习和模仿着芭芭拉的性格、声音、动作、手势，以及她对音乐那种深入骨髓的热爱和痴迷。女演员的出色表现时常让整个剧组惊叹，并为导演带来了诸多灵感。她的演技愈发得炉火纯青，一切进行得颇为顺利。"A mild suggestion"　此剧讲述一个怪力女子都奉顺和一个独一无二的男子相爱并发生横冲直撞的浪漫爱情喜剧故事。是一部幻想、喜剧和动作结合的有趣故事，都奉顺拥有谁都超越不了的怪力，被她打了至少需要62周才能痊愈。玉氏南正基导演，亲爱的恩东啊编剧，2月24日首播