The hydroseeding spraying greening equipment and the hydroseeding grass seed spray machine are commonly used spray greening equipment. Spraying planting grass, spraying and planting plant protection technology is to use the principle of liquid seeding.

Tunnel Boring Machine project is short for TBM project, in TBM project, need use lots of bentonite for waterproof. Bentonite generally formed by the volcanic ash layer of rock, mostly by the Tertiary volcanic ash or rhyolite.