환기구-바닥환기구-개폐가능한 바닥환기구 ,점검구-원타공 점검구-날개형입니다.

☆ 바닥환기구-STS (스텐)재질 :열림과닫힘가능   ☞ 교실바닥,체육관바닥,실내강당바닥 환기구 <img src="https://t1.daumcdn.net/cfile/cafe/2113773753E9793215" class="txc-image" style="FLOAT: none; CLEAR: none" data-filename="8-11.jpg" exif="{}" actualwidth="620" border="0" hspace="1" vspace="1" width="620" id="A_2113773753E9793215821F"/>   <img src="https://t1.daumcdn.net/cfile/cafe/2617A23753E9793310" class="txc-image" style="FLOAT: none; CLEAR: none" data-filename="10-11.jpg" exif="{}" actualwidth="620" border="0" hspace="1" vspace="1" width="620" id="A_2617A23753E97933107F1E"/>   <img src="https://t1.daumcdn.net/cfile/cafe/230CF23753E9793420" class="txc-image" style="FLOAT: none; CLEAR: none" data-filename="14-1.jpg" exif="{}" actualwidth="620" border="0" hspace="1" vspace="1" width="620" id="A_230CF23753E97934204009"/>   ★ 점검구 -개페가능: 날개형 원타공 환기구 <img src="https://t1.daumcdn.net/cfile/cafe/230F1A3753E979341B" class="txc-image" style="FLOAT: none; CLEAR: none" data-filename="9-11.jpg" exif="{}" actualwidth="520" border="0" hspace="1" vspace="1" width="520" id="A_230F1A3753E979341B459B"/>   <img src="https://t1.daumcdn.net/cfile/cafe/221B753753E979350C" class="txc-image" style="FLOAT: none; CLEAR: none" data-filename="7-11.jpg" exif="{}" actualwidth="470" border="0" hspace="1" vspace="1" width="470" id="A_221B753753E979350C8E16"/>