Special patent design ， utilizes hydraulic full - automation systematic outward - turning type . the operator can regulate hydraulic pressure freely ， and the operating space is not limited ， exactly improves working efficiency and safety rate 独特的专利设计，采用液压翻开式全自动系统方式，操作空间不受限制，可调液压压力，显著提高了工作效率和安全生产率。
