div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=document07-butterfly-manual-gear-operation-pk-valves-adopt-a-worm-gear-operation-selvedhtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: 07 BUTTERFLY VALVESmailquantumltdcomassetsdocumentspk_butterflypdf · MANUAL GEAR OPERATION PK valves adopt a worm gear operation selved as a standard of PK This type valve loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsusreader033viewer2022052102603c08c1c8922b256924dd56html5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=document07-butterfly-manual-gear-operation-pk-valves-adopt-a-worm-gear-operation-selvedhtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: 07 BUTTERFLY VALVESmailquantumltdcomassetsdocumentspk_butterflypdf · MANUAL GEAR OPERATION PK valves adopt a worm gear operation selved as a standard of PK This type valve loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsusreader033viewer2022052102603c08c1c8922b256924dd56html5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=document07-butterfly-manual-gear-operation-pk-valves-adopt-a-worm-gear-operation-selvedhtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: 07 BUTTERFLY VALVESmailquantumltdcomassetsdocumentspk_butterflypdf · MANUAL GEAR OPERATION PK valves adopt a worm gear operation selved as a standard of PK This type valve loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII=...