久艾草久久综合精品无码国产/正片/高速云

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.在一场万人瞩目的比赛中，俄罗斯国家队队长尤里因射失点球导致球队惨败，而后他声名狼藉告别了绿茵场。就在尤里跌入谷底被所有人遗忘的时候，一支地方球队却意外邀请他担任主教练。面对球队的内忧外患，政府的质疑与无视，球场上各种黑幕与潜规则，尤里毅然决然地带领这支球队开启了一场为己正名的战斗。终于在他的带领下球队逆袭闯进了全国决赛，而这最后一球将决定尤里能否带领这支籍籍无名的队伍取得胜利，代表俄罗斯参加欧联 ……Qian Xiaohao Endorsements: HK 0,000 Every 2 Years Yi Yang Endorsements: 200,000 RMB Every 2 Years2824