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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.剧情是讲述於1980年代发生连续杀人案件，由崔振赫所饰的资深警察於追查过程中穿越了隧道，来到2016年的现代，和尹贤旻所饰的刑警、李宥英所饰的犯罪心理分析师携手追案，进而破了30年前的女性连续杀人悬案。In terms of financing, there are not many companies that have obtained financing for children's thinking ability interactive game APP, and the rounds of companies that have obtained financing are also in round a and below.Physical Attack +192824Brief Introduction: Family stories, funny and humorous, bitter touching, carefree liberation. The eldest of the three brothers in a family has gone through all kinds of hardships to form a bond with the heroine played by Tao Zhiyuan. [1]