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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, A valve seat 7 is arranged between the valve disc 4 and the guide sleeve 6, a packing assembly 9 is arranged between the valve stem 3 and the valve cover 2, an O-ring 10 is further arranged on 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, and the contact end of the valve disc 4 and the valve seat 7 is provided with a water grain surface 41.　　十八年后，何妈改姓赵，化身为赵妈的女儿芸儿的陆明珠，和父亲程勇、妹妹同喜及师兄李俊落户在宁城。并和陆家有婚约的「古家商号」的千金古玥玥结为好友。崔宇成剧中饰演方宇蓝，他有三个姐姐，对女生很有礼貌。该剧另一个主演政宰由安贤浩饰演，政宰是一个烦恼着如何选择自己的性别的人物。天下风云际会，音乐版图亦分为南北。当世乐坛领袖蔡中丞为音乐而死，留下乐谱《聂政刺韩王曲》成绝唱。江南小镇，满怀音乐梦想的热血青年孙一郎与宫谨偶然相遇，因为一场斗琴比赛而成为至交好友，共同组建了一支乐队，许下誓言要用音乐拯救这个时代，他们四处流浪演唱，很快以生猛的乐风以及爆炸性的舞台表演风格赢得了人们的追捧。二人同时喜欢上了江南女子阿盈。然而，黑暗的阴云正在来临，野心和欲望极度膨胀的北方的慕容乐，一心以一统南北独霸乐坛为己任。江南乐队走起了先锋音乐路线，就在音乐事业如日中天之际，孙一郎竟突然被慕容乐派刺客暗杀身亡。孙一郎在巅峰之际突然被刺杀成为悬案，其弟孙二郎接掌江东乐团，成为乐团的新队长。不会唱歌的孙二郎因为长相丑陋，智商堪忧，始终活在与兄长的阴影中。二郎自知才能、声望不如宫谨，迫使宫谨离开江东乐团。宫谨返回家乡，隐于市井以打铁为生。改编自美国同名青春电影。3. The ID card of the handling person (one copy of the front and back is stamped with the official seal)