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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.Showtime续订金·凯瑞主演的《开玩笑》第二季。Tmall conducts lottery activities in Double 11 every year. For example, if Alibaba wants to improve people's use of Alipay to pay, if each user recharges 500 yuan to Alipay, then he can win 100% of the 100 yuan red envelope.江波、楚汉民、何花是三个好朋友。生长在江南小镇的他们，像所有北漂一样，大学毕业，闯荡京城，为事业、为爱情、为父母的面子，为光宗耀祖，拼尽全力。三人的父母也是几十年的老邻居。楚汉民的老妈为了让儿子结婚、抱孙子，首先跑到北京逼婚。在房产中介工作的汉民为了糊弄爹妈，借了房、借了车，借了个未婚妻，本以为爸妈住上个把星期就走，没想到他们不见结婚证不罢休。江波的老妈看到那两口子到了北京，把老伴扔下自己跑到北京逼婚。结果，楚汉民的谎言穿帮，把老妈气得住了医院。江波老妈发现儿子的女友不靠谱，决定拆散。何花有对象，但工作不如意。这时老爹老妈们才发现，孩子们的生活和他们的想象天壤之别，工作压力，生活压力，爱情压力，十分不易。经过各种事情，最终大家都能够相互理解尊重，为建立真实而和谐的新生活共同努力。他临死前，护住了我，杀了十三个人。You can use a simple factory plus reflection so that you don't have to add client code.