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。
Clutch spring, valve spring, 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。
The DFT? Model DLC? is a corrosion resistant, dependable, versatile and economical spring assisted, in-line check valve for a wide range of applications.
抗腐蚀、通用和可靠的弹簧止回阀，经济型、管内螺纹，适用于大部分设备。
Diagraph spring pneumatic brake valve is widely used as control valve for tractor - trailer braking system.
膜片弹簧式气制动阀作为控制阀已广泛地应用于拖拉机挂车制动系统。
In the paper a new method of using disc shaped spring in the multi way valve as reset spring is introduced, and the design model for characteristic optimization of reset spring is created.
本文提出了采用碟形弹簧，作为多路阀复位弹簧的新方法，建立了这种复位弹簧的特性方程及优化设计模型。
The article introduces the characteristic and demand of LPG carrier tanker safety valve, and discusses emphatically the design, making and debug for lead-down spring safety valve and its structure.
本文介绍了液化石油气汽车罐车安全阀的特点与要求，着重讨论了下导式弹簧安全阀的设计、制造和调试。
In this paper we introduced a new technique of heat treatment for producing valve spring wires.
本文介绍了生产阀簧钢丝的一套热处理新技术。
In this paper the construction and design knowledge of a disc spring type valve rotating mechanism are presented with the emphasis on the approximate calculations for the disc spring stress.
介绍了碟簧型气门旋转机构的结构设计要点，着重阐述了碟形弹簧应力的近似计算方法。
The working process for cold extruding of valve-spring base has been described, with a new die structure using ejector turning of itself.
介绍了气门弹簧座的冷挤压工艺和新型模具结构。
Spring brake chamber, brake valve, gland hand, 7 electric coil, spring coil, trailer parts for the USA.
弹簧制动气室，制动阀，藕合器，七芯电缆，螺旋气管，轮毂盖。
Spring brake chamber, brake valve, gland hand, 7 electric coil, spring coil, trailer parts for the USA.
弹簧制动气室，制动阀，藕合器，七芯电缆，螺旋气管，轮毂盖。
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