iav qhov rooj hluav taws yog lub qhov rooj hluav taws ua los ntawm iav thiab stainless hlau. Nws lub qhov rooj ncej thiab nplooj yog ua los ntawm high-zoo txias-kuav los tiag steel phaj, galvanized steel phaj los yog stainless hlau phaj. Lub qhov rooj iav qhov rooj muaj qhov zoo ntawm kev pom thiab kev zoo nkauj. Cov iav hluav taws siv hauv nws qhov chaw tsim khoom tuaj yeem cais cov nplaim taws ntawm ob sab ntawm lub qhov rooj.

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