1, environmental protection 2, portable 3, high efficiency 4, the pressure continued 5, structural non ... protection: mechanical performance is good, no noise, no pollution 2, portable: small size, light weight, easy to carry, easy to operate ... the annual non-serous granular materials can be used. 9, multi-functional: a multifunctional computer, and plugging grouting, cracks, grouting reinforcement. 10 ...