Canada ib ntus laj kab yog ua los ntawm welded hlau mesh vaj huam sib luag thiab cov kav dej square.Thiab muaj cov yeeb nkab square nyob rau hauv nruab nrab ntawm welded hlau mesh vaj huam sib luag los txhawb nws thiab ua kom nws muaj zog dua.Thiab nws tuaj yeem yog PVC coated, hmoov coated, galvanized lossis pleev xim rau.Nws cov neeg ua haujlwm ruaj khov thaum lub laj kab yuav tsum tau nyob rau lub sijhawm luv luv ntawm cov laj kab ib ntus kom haum rau koj qhov chaw tshwj xeeb.Peb lub laj kab vaj huam sib luag yog tsim thiab tsim ua kom muaj zog thiab ruaj khov tshaj plaws hauv kev lag luam.Lawv tuaj yeem ntsia tau sai thiab yooj yim, Lawv tuaj yeem sawv ntsug lossis txav mus rau txhua yam ntawm qhov chaw.