The equipment of valve pressure testing
xie ji lan; hou yuan xing(dalian high pressure valve factory; dalian 116022; china)

..............page:14-15

xiao kou jing jie zhi fa fa ban yu fa gan lian jie jie gou de gai jin
zhang jian hua

..............page:8-9

Improvement of seal structure for high temperature butterfly valve
wang ming 1; gong xiu yun 1; ou guo fu 2; yu guo qing 2(1 shenyang lionda valve co.; ltd; shenyang 110025; china; 2 zhenhai smelting limited company refinery; ningbo 325207; china)

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

di zao yin mi gong diao jie fa she ji
wu jie

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

Transportation control and adjustment for airtight pipeline Shuttle passive control systems
zeng xiang wei; gao shu fan; ding hui lin(chengdu fluid engineering technology corporation; chengdu 610041; china)

..............page:34-37

nei luo wen lian jie qiu fa fa ti zhong kou jia gong jia ju
kong liang liang

..............page:21-22

bian xie zu he shi fa men shi ya zhuang zhi
zhang hong xing ; yao yun tao ; shu dan ; hu bin

..............page:16-17

xiang nin ti gong fa men shui ya zi ping heng shi shi ya she bei

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

Comparisons of standards for integral steel pipe flanges
xu wan li(wenzhou tingyu group limited company; wenzhou 325000; china)

..............page:29-33,13

The method creating technological documentation and integrated in AutoCAD environment
zhu shao yuan 1; guo huai zho 1; chen xiang sheng 2; wu zhong yu 2(1 hefei general machinery research institute; hefei 230031; china; 2 shanghai liang gong valve factory; shanghai 200082; china)

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

Improvement of a slide-valve on catalytic cracking unit
zhang jian wei 1; liang han xiu 2; liu jia zhi 2; gao shu qing 2(1 shenyang institute of chemical technology; shenyang 110021; china; 2 heilongjiang petro chemical plant; daqing 163713; china)

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

The improvement on the way of machine elastic seat ring
jin zhen zhong(the second machinery plant of daqing petroleum administrative bureau; daqing 163411; china)

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

mei guo teledyne te li de qi qu gao ya liu ti beng

..............page:22

Study of spraying welding for ball surface
wang de quan; li ai guo; zhao ying(shenyang valve research institute; shenyang 110025; china)

..............page:10-13

wen zhou shi zuo hai fa men wu chang

..............page:15

fa men shang mi feng shi yan de ji dian si kao
ye sheng

..............page:18

shang hai gao neng gao ya fa men chang

..............page:44

wen xian suo yin
liu kai ning

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

zhe jiang yuan dong gao zhong ya fa men chang

..............page:43

zheng ti shi nai yong qiu fa

..............page:9

Spring-diaphragm actuators
cai shou lian(shanghai neles jamesbury valve co.; ltd; shanghai 200092; china)

..............page:38-40

yan chi jiao hua ta zhuan yong zha fa
le jing hua ; chen xiu yan

..............page:28