Chemical industry pipe lines chemical facilities tubes soiling pollution contamination pipelines conduit piping tubing boiler water building plumber work gas plant home site steel basement worker background pressure technical wrench plumbing red power valve horizontal appliance repairman renovation copper service plastic vertical technology energy industrial maintenance utility machine house repair improvement heat brass construction metal hot blue gray yellow climate change
您在 中发现了 0“chemical industry pipe lines chemical facilities tubes soiling pollution contamination pipelines conduit piping tubing boiler water building plumber work gas plant home site steel basement worker background pressure technical wrench plumbing red power valve horizontal appliance repairman renovation copper service plastic vertical technology energy industrial maintenance utility machine house repair improvement heat brass construction metal hot blue gray yellow climate change” 图形