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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.5. Customize attributes in HTTP headers and verify陈辽也觉得苏岸有些过于敏感了，即便是真的水淹城池，还不得救援。别是个姑娘投错了胎吧……钱明编在板栗这一火，他一只胳膊搭在秦淼肩膀上，将她搂在怀里，另一只手捏捏她的胳膊，嘴里不停打趣。These are the core configuration requirements of the game. As long as the match is balanced, those who meet the above hardware requirements can run DNF smoothly.Second, how to make Word column evenly divided