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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.《行尸之惧》衍生剧 讲述 核潜艇中 爆发丧尸病毒的故事改编自小说《陛下请自重》，主要讲述了女主田七为了复仇而进入皇宫，因为自身有着特殊的超能力而被皇上看中，随后被皇上提拔到御前，随着时间的推移，田七的真实身份被暴露，她盗用别人的身份入宫，她真实的身份是忠臣的后人季昭。　　在土豪老板和疑似真爱的广清中，她究竟会选择谁？We can also use the javascript callback function as follows:出乎陈启意料，秦思雨还是爱好文学者，时常向陈启讨教写作经验。捍卫正义，惩治邪恶是律师的神圣使命，而千篇一律、循规蹈矩地查证、起诉，如何斗得过奸诈有钱、有金牌辩护律师护身的大鳄鱼？锲而不舍 追寻真相义不容辞 为民伸冤法律--象征公平、公义。但当法律存着漏洞，无辜的人如何沉冤得雪呢？不修边幅、富正义感的律师黎志鹏（欧锦棠）为替恩师杨佐铭（姜大卫）洗脱罪名，千方百计找寻真正凶手--大商家阮利来（黄允材）的罪证。期间，鹏为了暗恋对象阮方瑜（江美仪），放弃女友何子菁（蔡晓仪）。可惜瑜却与他的好友唐晶（尹天照）相爱，鹏大受打击，往平民区替低下层市民打官司。另边厢，瑜揭发晶之弟唐森（甄志强）监守自盗，森入狱，并暗中部署对晶、瑜的报复行动。究竟晶、瑜能否逃过大难呢？而鹏又能否把来绳之以法呢？