Đặt câu với từ natural asphalt, mẫu câu có từ 'natural asphalt' trong từ điển Tiếng Anh

Đặt câu với từ "natural asphalt"

1. Mastic Asphalt is obtained by heating natural Asphalt with sand and mineral fillers

2. Natural Asphalt is subjected to high pressure air under high temperature to get Asphalt cement

3. In Wietze in lower Saxony, natural asphalt/bitumen has been explored since the 18th century.

4. Bituminous mixtures based on natural and artificial aggregate and bitumen or natural asphalt as a binder