Introduction To Tree Pit Covers

Ntoo qhov npog-tseem hu ua ntoo thaiv lossis ntoo grate-yog cov khoom siv tiv thaiv siv hauv kev tsim kho vaj tse thiab hauv nroog; Lawv feem ntau yog ntsia rau ntawm tsob ntoo pits los tiv thaiv av yaig thiab txhim khu kev zoo nkauj. Feem ntau sib sau ua ke los ntawm symmetrical panels featuring lub hauv paus qhib rau tsob ntoo thiab perforations rau cov kua, cov npog no yog tsim los ntawm cov ntaub ntawv xws li cam khwb cia hlau, resin composites, thiab fiberglass (FRP). Lawv muab cov khoom zoo li corrosion kuj, lub zog siab - rau- qhov hnyav piv, thiab nplaim taws retardancy, nrog rau qee cov qauv tsim nrog kev sib cuam tshuam ntawm kev sib tshuam thiab kev xauv cov txheej txheem los tiv thaiv tub sab.

Thaum ntxov ntoo npog npog feem ntau yog ua los ntawm cam khwb cia hlau tab sis raug kev txom nyem los ntawm cov teeb meem xws li susceptibility rau tub sab nyiag thiab corrosion. Tom qab xyoo 2010, cov ntaub ntawv zoo li fiberglass thiab resin composites tau txais koob meej, dhau los ua qhov kev xaiv tseem ceeb vim lawv cov kev tiv thaiv corrosion, xim customizable, thiab yooj yim ntawm installation. Xyoo 2022, Nanjing's Gulou District tau tho kev siv cov npog uas ua los ntawm cov khoom siv polymer sib xyaw; cov no muaj kev txhim kho permeability thiab load-cov kabmob muaj peev xwm, featuring "neeg siv-tus phooj ywg" tsim uas zaum flush nrog txoj kev nto. Nyob rau hauv xyoo tas los no, kev tsim khoom tau nthuav dav kom suav nrog ntau txoj hauv kev xws li BMC thiab SMC molding, ua raws li cov cai tshwj xeeb ntawm ntau yam kev siv.