The reason for abnormal leakage of general spring direct acting safety valve is analyzed and the method for overcome this abnormal leakage is proposed.
分析了一般弹簧直接作用式安全阀非正常泄漏的原因，提出了克服其非正常泄漏的方法。
2
Clutch spring, valvespring, spring for shock absorber, torsion bar for automotive seat, other kinds of high quality spring and key parts for automotive industry.
离合器弹簧、气门弹簧、减震器弹簧、汽车座椅扭力杆、其他各类汽车行业用高品质弹簧及关键部件。
3
The DFT? Model DLC? is a corrosion resistant, dependable, versatile and economical spring assisted, in-line check valvefor a wide range of applications.