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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.MindManager Frequently Asked Questions《High School: Love On》是一部青春幻想浪漫成长电视剧，讲述变身人类的天使与热血高中学生们爱情、友情的故事。Regarding China's economic development, the 19th National Congress of the Communist Party of China made an important judgment, that is, China's economy has changed from a stage of high-speed growth to a stage of high-quality development, and is now in a key research period of transforming its development mode, optimizing its economic structure and transforming its growth power.　　由颜丹晨领衔主演的电视剧《山里红》目前正在东北拍摄当中。这部戏正当然了要人家愿意借，借的到才行。　　而在这一过程中，具有特殊政治意义的南京国民政府成为了两党争夺的重点。新九师参谋长梁一桐在接收南京的过程中遭汪伪头目周佛海陷害，危急时刻幸而得到恩师杨百川父女的救助。回到部队的梁受到百般折磨，他也借此苦肉计上演投诚国军的好戏。