1.UPVC(ASA) rooing sheets are applicable to roof pitches from 8°to 22°,with purlin span no more than 800mm.
1.UPVC (ASA) ແຜ່ນ rooing ແມ່ນສາມາດນໍາໃຊ້ກັບ pitches ມຸງຈາກ 8 ອົງສາເຖິງ 22 °, ມີ span purlin ບໍ່ມີຫຼາຍກ່ວາ 800mm.