qiu fa fa gan mi feng jie gou de gai jin
dai hua

..............page:13

Test and analysis of dynamic performance of model LYHT open to air check valve
zhahg yu(shanghai research institute of general machinery; shanghai 200042; china)

..............page:14-18

fa men chang yong dian pian
wang mao zhong ; hou bai yan ; ma yong

..............page:37-38

Deformation analysis and calculating formula study on flexible gate stress
ben shao wen(shenyang valve research institute; shenyang; 110025; china)

..............page:1-8

Improvement on the production technology and the analysis of the drilling pump valve seal malfunction
zou hua ji(drilling and extracting equipment manufacturer of petroleum administration bureau of sichuan; sichuan; guanghan 618300; china)

..............page:27-29

jie zhi fa dao xiang fa ban jie gou de gai jin
song qiang ; wang qiu xia

..............page:12

Analysis of control valve instability induced by unsteady sophisticated fluid flow
tu shan; sun bi; mao jing ru(xi an jiaotong university; xi an 710049; china)

..............page:19-21

Selection of overlay material for valve sealing surface
su zhi dong(shenyang valve research institute; shenyang; 110025; china)

..............page:22-26

ji chuang liu ban mo sun de jian yi xiu fu
yang ji shan

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

wen xian suo yin
liu kai ning

..............page:41-42

yi zhong duo gong neng fa men
xiao zhi chang

..............page:40

Study the sealing of double offset butterfly valve
xu fu xia\+1; xing wei ping\+2(1\^dept.of math.; tangshan teacher s college; tangshan; 063000; china; 2\^qinhuangdao metallurgical machine valve factory; qinhuangdao 066004; china)

..............page:9-12

Application of hydraulically controlled automatic gate valve in feed exhaust water pump station
xie hui; wu zhi jie(zhuzhou railway water electricity section; zhuzhou; 412000; china)

..............page:33-35

Research on CAM technology of valve
liang hong bao\+1; xu bu yun\+1; yan lehao\+2(1\^daqing petroleum institute; anda 151400; china; 2\^no.2 machinery plant of daqing petroleum administration bureau; daqing 163411; china)

..............page:30-32

you guan ye ya an quan fa de you wei que ding
liu jie

..............page:35-36

zha ban chai zhuang gong ju
yang xue feng ; yang wei dong

..............page:39