耐火澆注料、滑動(dòng)水口、輕質(zhì)澆注料、纖維氈?jǐn)嚢桎N售。(依法須經(jīng)批準(zhǔn)的項(xiàng)目,經(jīng)相關(guān)部門批準(zhǔn)后方可開展經(jīng)營(yíng)活動(dòng))
耐火澆注料、滑動(dòng)水口、輕質(zhì)澆注料、纖維氈?jǐn)嚢桎N售。(依法須經(jīng)批準(zhǔn)的項(xiàng)目,經(jīng)相關(guān)部門批準(zhǔn)后方可開展經(jīng)營(yíng)活動(dòng)) 收起-