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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.咱们家下人也不能太少了。但是没有想到《白发魔女传》突然冒出来，武侠小说创作又有了新思路，估计又能活上十几二十年。今儿可是救了我一命，从此你就是我的救命恩人了。“乱世桃花逐水流”，被誉为当世三大美人之一的甄宓，外貌出众，神采飘逸，令她不由自主地一生于情海中飘荡，亦悲亦喜。2 Activities related to the JIT production modelDNS (Domain Name System), as a distributed database mapping domain names and IP addresses on the Internet, enables users to access the Internet more conveniently without remembering IP strings that can be directly read by machines.