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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, A valve seat 7 is arranged between the valve disc 4 and the guide sleeve 6, a packing assembly 9 is arranged between the valve stem 3 and the valve cover 2, an 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.所以《白发魔女传》就等着臭大街吧。……夏正一看自己是哪壶不开提哪壶，赶忙转移话题，这些功名，也不过是一场空。In men, this aspect is often more prominent, consciously or subconsciously do not want to be regarded as helpless or in need of help-it can be said that the real "face-saving".让人有些意外的欧美小清新爱情电影，影片讲述了两个美国大陆东西两端完全没有交集的陌生人之间的故事，两人不知为何被不可思议的力量联系在一起共享视觉听觉嗅觉等，当然最后相爱在一起了的爱情故事。就算去找红椒妹妹，也该先冷静下来。《超蓬勃》以诗选剧类型开发，每季探索一个撼动商业世界核心并改变文化的故事。