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What kind of should eligible fireplug be?

From;  Author:Stand originally
Eligible fireplug surface paints feeling should be smooth, but this building dish the fireplug that installs feels hairiness thorn, the put out a fire with this meeting normal effect comes to help the job. Additional, 160 degrees when the angle short of that box of put out a fire opens asks, such meetings make inconvenience arises in fire fighting process, go against fire control to begin put out a fire to come to help.
Establishment of normal a fire control needs 440 yuan, and assembly fire control carries out a can cheap 20%~30% to control, that is to say equipment of fire control of a Y wants petty gain 88 yuan of ~ 132 yuan.