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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.《大染坊》讲述的是陈寿亭这位印染业奇才的奋斗故事，他虽不识字，却勇于创新，智计百出，深明大义，忠心爱国。可以说陈杰的《大染坊》既是个人奋斗的深情礼赞，也是一曲民族工业的悠长挽歌。别人对他不好，他就当那人是坏人，当他是仇人，跟他斗，跟他拼。成皋北面和西面临黄河，南面和东面为深涧，故成皋之名是取山岭高矗濒临黄河之义.\可以说是一座易守难攻的城池，不过在此之前也曾有过被楚军攻陷的历史。杨天青的叔叔杨金山，是个有生理缺陷的染坊主，在折磨死两房太太后，为续香火，他又花大价钱买了个年轻漂亮的女人菊豆，对其百般虐待。年近四十而尚未娶亲的天青，对因叔叔每夜滥施淫威而痛苦哀叫的菊豆由怜生爱，两人私通，生得一子。金山喜出望外，以为己出，取名天白。但不久金山中风，半身不遂，菊豆与天青更加肆无忌惮，得知真相的金山想要报复，后却误坠染池丧命。按家族的规矩，天青要搬出染房，被迫分离的菊豆与天青只能暗地来往。三个儿时的伙伴，长大成人。现实生活将他们推上了人生舞台，于是他们找到各自的感觉在舞台上尽兴地表演着，演绎了一幕幕发人深省的故事。故事发生在一家国际时尚传媒集团的中国杂志总部。生于普通家庭的女主人公周恬刚从北京某大学文学系毕业。《HAN尚》是一本时尚杂志，由“时尚第一主编”韩露亲自操刀运营，周恬因机缘巧合成为主编韩露的初级秘书，在这之后伴随她而来的是以前未曾想象过的残酷职场经历。女主人公通过自己的勤奋和努力，很快完成了“麻雀变凤凰”的过程，经历了一场梦幻般的职场冒险。在这个化茧成蝶的过程中，周恬身上所体现出的执着、奋进和面对何种困难都不放弃的精神鼓舞和感染着每个人，在痛并快乐的奋斗过程中，周恬却发现自己一直努力不放弃的工作并不如想象中的那么美好，而她的爱情也因环境的改变面临着考验……