Screw thread process method for NC lathe
xu chuang wen; mu xi qing(lanzhou polytechnical college; lanzhou 730050; china)

..............page:25-27

The structure and material selection for high temperature and high pressure ball valve
liu min liang; lang xian dong; qu ping; lu chun ping(dalian high pressure valve factory; dalian 116022; china)

..............page:12-13

Research of valve enterprise product data management solution
sun jiang hong(beijing institute of machinery; beijing 100085; china)

..............page:35-38

The development trend of electric valve actuator
xu chang wu\+1; tan ai hong\+2(1\^yangzhou electric power equipment repair & manufacture factory; yangzhou 225003; china; 2\^yangzhou polytechnic college; yangzhou 225002; china)

..............page:33-34,38

The designation of the pressure-regulating-valve for high pressure water jetting
niu ji lie; du feng hua(1 university of petroleum; dongying 257061; china; 2 shengli oilfield limited cor.; dongying 257060; china)

..............page:10-11,15

The design of a new typed magnetic force flouting ball liguid level meter
chen mei feng; li gui jie(shenyang xingguang valve manufacturing plant; shenyang 110043; china)

..............page:4-6

Water hammer of pipeline influence the check valve design
ding hai ping(sinopec shanghai jinshan engineering company; shanghai 200540; china)

..............page:1-3,9

Pilot-oprerated throttle
liu feng; li xue sheng; cheng gui hua(mechanical manufacturer of petroleum university huadong; dongying; 257061; china)

..............page:7-9

Double seal hydraulic flat gate valve
li zhen; wang wen yuan(shenyang university; shenyang 110044; china)

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

Iron-Based alloy powder of plasma arc surfacing for valve seal surface
wang de quan(shenyang valve research institute; shenyang 110025; china)

..............page:16-21

Analysis and research on sealing property of packer for oilfield injection
yan le hao; duan chang jun(special automobile general manufacture of daqing oilfield administration bureau; daqing 163411; china)

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

die fa qu dong ji xie ji gou xing neng fen xi
ma yao wu

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

Design and application of production line for painting valve
zhu pei nian(chang shu & shen ban warm and general air conditioning equipment company ltd.; changshu 215500; china)

..............page:28-29

re feng fa fa ban jie gou de gai jin
chang li jun

..............page:42

Cause of and solution to tempering water quick-open valve defect
shen kun xin(hpi nantong power plant; nantong 226003; china)

..............page:39-40

The choice of interior characteristic of the controlling valve
jia li jun; wang min; wang ze qing(haerbin hbc valve co.ltd; haerbin 150046; china)

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