The introduction of Italy advanced hydraulic system, steady lifting, high safety coefficient.
引进意大利先进的液压系统，升降平稳，安全系数高。
2
Advanced the mathematical model of the hydraulic components life estimation method and established the relations of the system target cleanliness to the life extension coefficient.
给出了现场条件下液压元件寿命估算的数学模型和系统目标清洁度与寿命延长系数的关系。
3
This product possess advanced structure, good sealing performance, high tensile strength, corrosion-resisting, good elasticity, good self-lubricating character, small friction coefficient, etc.