32700 Cylindrical batire ndi mtundu wa batri wokhala ndi mphamvu zambiri, moyo wautali wozungulira komanso kutentha kozungulira.Zogulitsazo zimagwiritsidwa ntchito mu nyali za dzuwa, nyali za udzu, mphamvu zosunga zobwezeretsera, zida zamagetsi, zitsanzo zoseweretsa, mphamvu za photovoltaic.
