(The commonest mortar thicknesses of exterior products which are preferred in good quality and economic product class around the world are 2 mm/3 mm and 4 mm.)
(ຄວາມ ຫນາ ຂອງປູນປູນທົ່ວໄປທີ່ສຸດຂອງຜະລິດຕະພັນພາຍນອກທີ່ມັກໃນຄຸນນະພາບດີແລະຊັ້ນຜະລິດຕະພັນເສດຖະກິດທົ່ວໂລກແມ່ນ 2 ມມ / 3 ມມແລະ 4 ມມ).