Material kedap air (lempung) diambi

Material kedap air (lempung) diambil dari pelapukan breksi tuf dan tufa lapili,
yang terdapat di sepanjang bantaran sungai dan ladang penduduk. Ketebalan
lempung di area area ini berkisar antara 1-2 meter.

結果 (英語) 1:

Waterproof materials (clays) is derived from the weathering of breksi Tuff and tuff lapili,found along the banks of the river and the fields of the population. The thickness of theclays in this area area ranges between 1 to 2 metres.

結果 (英語) 2:

Water-resistant material (clay) is taken from the weathering of tuff breccias and lapilli tuffs,
which are along the riverbanks and fields of population. The thickness of the
clay in the area this area ranges between 1-2 meters.