Metal seated butterfly valve
shi zhen he(shanghai neles jamesbury valve co.; ltd; shanghai 200092; chian)

..............page:9-10

wen xian suo yin
liu kai ning

..............page:42-43

Points for ettention on API examination
ye jian gou; yu da(shang hai inspetion company-abs group company cooperatire centre; shanghai 200020; china)

..............page:29-32

Dynamic water closing test of butterfly valve and analysis
gao xin 1; yuan bing bin 2; yao yue hong 1; zhang yan bin 1(1 haerbin electric machinery company limited; harbin 150040; china; 2 harbin broadcasting equipment factory; haerbin 150046; china)

..............page:18-21

Analysis on characteristics of flowing resistance of reguator
yang ji wei; zhang li rong(hebei institute of architectural science & technology; handan 056038; china)

..............page:22-24

Improvement of stem seal structure
zhao xiao bo; liu feng(petroleum university; huadong; dongying shandong 257062; china)

..............page:36-37

Designing in high pressure clean water control valve
huang xiao yun; chen jing(shenyang university; shenyang 110044; china)

..............page:13-14

High-speed and great rate of flow solenoid valve
zhang xiao jun 1; zhu guo wei 2; cui ke run 2(1 the institute of optics and electronics chinese academy of sciences; chengdu 610209; china; 2 wuhan university of technology; wuhan 430063; china)

..............page:6-8

Stress calculation and analysis on welding seat of stop valve
wang ze qing; zhang wei dong(haerbin boiler plant limited liability company; haerbin 150046; china)

..............page:1-5

Selection of bellows length of flow control valve
fu li ping; wang ji(dalian high pressure valve factory; dalian 116022; china)

..............page:11-12,16

The multiple and sealed plain valve
sun rong quan; wang da weng; li wei(mechanical engineering department of shenyang university; shenyang 110044; china)

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

mei qi yong zu he die fa
guo fu kuan

..............page:17

The improvement of safety valve connecting pipe hole
xu yuan peng; sheng kun xing(huaneng nantong power plant; nantong 226003; china)

..............page:38-39

Application of Preoxidized+Heat-circle nitriding process for valve of electric power works
gu bang yu(dongfang boiler valve co. ltd; zigong 643001; china)

..............page:27-28

Attempt of increase rotate precision of main axis of simple lathe
wu di(shenyang electric power institute; shenyang 110036; china)

..............page:40-41

Adjustable differential flow shuttle valve in application of ball valve control
zeng xiang wei; gao shu fan; xu li hong; ding hui lin(sichuan jiawei fluid engineering co.ltd.chengdu 610041; china)

..............page:33-35,39

Machining and testing of full lined rubber butterfly valve
han xiao yi(tieling valve voint stock co.; ltd; tieling 112002; china)

..............page:25-26