... . and it has the advantage of easy operate, high hardness, good bonding, no empty drum and crazing ... N2 mortar spraying pump is a spraying unit with high reliable, well-adapted, sturdy and durable, easy ... labor, money and time. Additional, the project quality is much better than manual construction. The spraying ... Subject to modification without notice. 2013 Super Quality N2 Mortar Spray Machine sale