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coverboard. 3,pipeclamp,stents,derrickandboxandsoonmetalparts,shallbegalvanizedorbrushanti-corrosionpaint;Adoptgalvanizedpartsshouldbeused. 4,materialsneeded:wireandsteelpipe,elbow,flexiblemetaltube,distributionbox,junctionbox,lampbox,socketbox,straightpipejoints,jawthreadedpipejoints,pipeclamp,roundsteel,Anglesteel,flatsteel,support,derrick,galvanized,bolts,nuts,washers,bolts,galvanizedwoodscrews,self-tappingscrews,nails,nailandbullets,anti-corrosionpaint,mixedpaint,asphalt,oil,oil,cement,sand,ironwire,groundwireclamp,etc. 1.3.1.3mainmachinesandtools 1,withhold,leverpipebender,hydraulicsawing,grindingwheel,diamondcoredrillsforbenchdrill,drill,electrichammer,electricweldingmachine,weldingtools,nailgun. 2,specialboard,adjustablewrench,hacksaw,flatfile,halfroundfile,hammer,electricweldingmachine,weldingtools,nailgun. 3,spiritlevel,Anglesquare,tapemeasure,ruler,tapemeasure,linedrop,stringcable,chalklinebagshovel,bucket,ashbucket,ash,etc. 4,highinsulatinggloves,toolbag,stool,herringboneladder,etc. 1.3.1.4operationconditions 1,darkpipelaying (1)lineofhorizontalandwallthicknessineachlayerhasgoodplay,cooperatewithcivilconstruction. (2)theprecastconcretepipe,beforemakethegroundplayishorizontal. (3)thecast-in-placeconcreteslabinsidethepiping,aftertheunderlyingsteelbinding,topbarsbeforebinding,accordingtothesizeandlocationwiththecivilconstructionofconstruction. (4)with(masonry)cooperatewiththeriserwallconstruction. 2,Mingpipelaying (1)cooperatewithcivilengineeringstructureinstalledembeddedparts,thereservedhole. (2)takenotemethodfixedbracket,shouldbebeforerendering;Afteradoptingexpansionboltsupport,shouldbeinplaster. (3)thepipingshallbecarriedoutafterthecivilspray,brushpaint. 3,theceilingpipelaying (1)buildingstructureinstallationofembeddedparts,thereservedholework. (2)individualsupport,hangingline,intheceilingkeelinstallationconstruction;Intheceilingofthemainkeellayingpipeline,cooperatewithkeelinstallationinconstruction. (3)interiorconstruction,cooperatewithcivilceilinglampsa