1.NFPA standard is implemented. 2.It belongs to mini cylinder that has compact structure, small volume and light weight. 3.The guide precision of piston rod is high and no additional lubricant is needed. 4.Piston rod stainless steel barrel make the cylinder adapt general corrosive working environment. 5.There are cylinders and accessories with several specifications for installation for your choice. 6.It has small cylinder diameter and quick reaction, suitable for the working environment with higher frequency.