持续改进，追求零缺陷”是凯斯通阀门永不懈怠的质量方针和目标。
"Continuous improvement, the pursuit of zero defect" is Kestong valve never slack quality guidelines and goals.

我们以高于国际、国内标准及客户要求，建立内部的质量保证体系，实施全面、全程质量管理。凯斯通阀门拥有先进的检测中心，能够自主独立完成从产品原型试验认证到产品出厂检验全部的检验、检测；这些检验、检查包括：射线探伤、着色探伤、磁粉探伤、超声波探伤、光谱分析、材料鉴别（PMI）、金相组织检测、各种机械性能试验、防火试验、超低温试验、高温试验、真空试验、低泄漏试验、高压气体试验、流体动力试验、产品寿命试验，以及常规水压等一系列阀门实验。
We are higher than the international and domestic standards and customer requirements, the establishment of an internal quality assurance system, the implementation of a comprehensive, full quality management. 
Kestong valve has advanced testing center, independently from the product prototype test certification to the final product inspection of the entire factory inspection, testing; these tests, inspection include: ray inspection, color inspection, magnetic detection, 
ultrasonic testing, spectral analysis , Material identification (PMI), metallographic examination, various mechanical properties tests, fire tests, cryogenic tests, high temperature tests, vacuum tests, low leakage tests, 
high pressure gas tests, hydrodynamic tests, product life tests, A series of valve experiments.

为确保毛坯质量凯斯通阀门设有自己的铸件工厂，从原料生产到成品出库有效管控每一过程。此外，凯斯通阀门积极实施六西格玛管理，在公司内部推行 “零缺陷”项目，并通过先进的数据统计分析，达到持续提高过程控制与管理能力。
In order to ensure the quality of the rough Castel have their own casting plant valves, from raw material production to the finished product out of the library effectively control each process. 
In addition, Catone Valve actively implements Six Sigma management and implements "Zero Defects" within the company. 
Through advanced data statistics and analysis, it continuously improves the ability of process control and management.