Conceptual design of ball-valve based on extension engineering method
zhang yong-wei; zhang qiang; liu fei; zhao feng(yangtze university; jingzhou 434023; china)

..............page:8-11

Bellows sealing ball valves
ge tian-min; zhang wen-peng; tan ai(shangzheng valve groups co.; ltd; wenzhou 325015; china)

..............page:15-16

Mechanical analysis of the nuclear safety class 1 valve
zhang zheng-ming; wu xin-xin(institute of nuclear and new energy technology; tsinghua university; beijing 100084; china)

..............page:18-22

Inquiry into effective area of diaphragm of gas decompressor
yan ren-xing; huang zong-hua(shanghai general gas valve factory; baoshan 200949; china)

..............page:12-14

Analysis how to perfect china cylinder accessories' standard system and specification
sun li1; tang xiao-ying2; mao chong-ni1(1.member of china gas cylinder technical committee for standardization; shanghai 200062; china; 2.department for supervision administration of special equipment of shanghai municipal bureau ofquality and technical supervision; shanghai 200031; china)

..............page:37-40

Study on prolonging life of ultra high pressure valve
yuan ge-xia(department of mechanism and electronic engineering; baoji university of arts and science; baoji shaanxi 721007)

..............page:41-43

wen xian suo yin
liu kai ning

..............page:44-45

Analysis of rubber sealing conditions of resilient seated gate valve
ni ping(ningbo amico copper valves mfg inc; ningbo 315020; china)

..............page:31-36

Design and calculation of valves for acid oil and gas
zhang qing-ming(btl valve group; wenzhou 325105; china)

..............page:1-7

The structural improvement of slurry gate valve when flow controlled
he qiang-sheng(shijiazhuang industrial pump factory; shijiazhuang 050100; china)

..............page:17,22

Study of water digital throttling valve controlled by microcomputer
wang dong; sun hui(wuhan institute of science & technology; wuhan 430073; china)

..............page:28-30,40

Technology of spray-welding powder hard metal alloy on 1Cr13 large type of gate
an li-cheng; yan hui; liu xu-yun(dalian dagao valve c.; ltd; dalian 116037; china)

..............page:26-27

A study on the transient numerical simulation of diaphragm over valve
zhang man-lai; feng jin; huang tian-cheng; zhang qin(college of mechanical engineering; yangtze university; jingzhou.434023; china)

..............page:23-25

zhong guo fa men xin xi wang cheng yuan

..............page:53-58

zhong guo fa men xin xi wang cheng yuan jian jie

..............page:46-52