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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.Three, achieve achievement two "rescue four Tang! 25 Battle Tangmen"　　心怀镖头理想的雷儿当了镖局的趟子手，同时对朝夕相处的武魁暗生情愫。武魁钟情于没落王府格格谟娅，这让雷儿暗自神伤。在护送谟娅的任务中，雷儿闹出了笑话一箩筐。但当路遇悍匪的紧要关头，雷儿挺身而出。正是雷儿的勇敢，得到了土匪首领哑狼的爱慕。Put this file in the folder where the NeoGeo game ROM is located.