一 Environmental Protection 環保
All the raw material and indirect material, are strictly being used according to RoHS requirement.
所有原材料及工藝輔料，都嚴格貫徹RoHS指令要求。
Raw materials and new technology development are environment-oriented.
優先選用有利于環保的原材料及新工藝。
二 Supplier System 供應商體系
With the most suitable materials to produce most high-quality products.
用最適合的原材料制造最優質的產品
Implement quality system management when for supplier selecting and evaluation. We implement multi-sourcing strategy in order to guarantee the stability and in time of raw material supply.
四通在供應商的選擇和評估上實行體系化管理，各關鍵環節均設有多家供應商，以保證產品原料質量的穩定及時。
80 percent of suppliers is within 200 kilometers from company, the supplier around Shanghai will be our priority for selection. Stone adopt strict inspection procedure to ensure material quality is stable and reliable.
80%的供應商在公司200公里以內，優先選用以上海為中心的供應商體系。 在進料時，四通采用嚴格的檢驗程序，確保材料質量的穩定可靠。
三 Mode of Production 生產模式
By the process design of the production, make production process transparent, unitization, flexibility, so as to make high-quality goods, the prompt delivery.
通過對生產流程的工藝設計，使生產環節同時實現透明化、單元化、柔性化，做到打造精品，及時交貨。
四 Product Testing Procedures 產品測試程序
Stone focus on product reliability, equipped with overall performance testing equipment and environmental testing equipment , can do test of electricity property and mechanical strength reliability for product.
四通重視產品的可靠性，配備有全面的性能檢測設備和環境試驗設備，對產品的電性能、機械強度的可靠性進行測試。
五 Creative Process Design 創新的工藝設計
Stone has advanced mechanical design, tooling/fixture and testing equipment. By exquisite technology to ensure the quality of products and provide products and services which can meet customer requirement.
四通擁有先進的機械設計、工裝夾具和檢測設備，用精致的工藝技術保證產品的質量，提供滿足客戶需求的產品和服務。
六 Continual improvement of the quality management system 持續改進的質量管理制度
ISO quality management
ISO 質量管理
Stone strictly follows the ISO9001:2015 quality management assurance system, strict control of the production process.
四通嚴格遵循 ISO9001:2015質量管理保證體系，嚴格控制生產流程。
In after-sales service, Establishes long-term tracking quality supervision system, constantly to understand customer needs, continuously improve product quality.
四通在售后服務上，建立了長期跟蹤質量監管體系，不斷了解客戶需求，持續改進產品質量。
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