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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.Public Original (String value) {众人愣了一会，忽地轰然大笑。According to the provisions of the Criminal Law, intentional injury causing serious injury shall be sentenced to fixed-term imprisonment of not less than three years but not more than 10 years.杰德是一位年轻的母亲，在她生命的黄金时期，一次酸的袭击使她严重烧伤。当她的脸被重新塑造时，她的美丽在伤疤下消失了。随着人际关系的崩溃，玉走上了一条自我毁灭的道路，她必须采取激烈的行动来挽救自己的生命。2926北京大学的高材生唐浩与外语系韩语专业的漂亮女生李嘉影真心相爱，因出身贫困课外努力打工，减少家庭负担，共同的命运和共同的追求使两个年轻人心心相印。