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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, The O-ring 10 is further arranged at 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, 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, and the valve body 1 is provided with a liquid inlet cavity and a liquid outlet cavity.Guo Tuan, secretary of the Party General Branch of Beijing Chaoyang Circular Economy Industrial Park Management Center, said: "Plastic foam mixed with domestic waste will cause coking on our boiler wall during our incineration process. We will have to clear this coking during maintenance, increasing the cost. For example, if our dissolved water wall can be used for 5 years and there is more plastic, the dissolved water wall can be used for 3 years, and the direct cost will average more than 3 million per year. "泰剧《沙风暴》于2021年4月播出,Phunara高尔夫俱乐部的第二继承人Naret必须紧急返回泰国，因为他同父异母的哥哥Narin失踪了。 他遇到了哥哥的私人助理Sai，这是他难忘的初恋。 他们一起走上了解决他哥哥失踪的旅程。User name cannot be empty传说人的心中一旦产生怨恨，就会招来“怨屋”以复仇行为来为其抚平心中怨恨。When Xiao Bian first came to Nagoya, he chatted and asked a local person, where is Nagoya more fun?他只瘫坐在自制的绒皮沙发上，露出闲散的微笑。