Nanchuan multi span zaj duab xis tsev cog khoom project yog peb cov qauv ua haujlwm. Muaj cov kiv cua ntub cov ntaub thaiv sab nraud, ib qho kev shading sab nraud, thiab koj kuj muaj cov arched sab hauv shading system. Nws tau siv rau 3 xyoos tom qab kev teeb tsa, thiab nws ua haujlwm zoo, ua kom cov qoob loo nce ntxiv.
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