KSW is a China-based manufacturer specializing in large-diameter copper alloy and stainless steel pipes, fittings, and fluid system components for marine, offshore, and industrial applications.
The company has strong engineering and R&D capabilities, supported by a portfolio of 26 patented technologies in non-ferrous metal processing, surface treatment, and specialized equipment design.
KSW operates under ISO 9001, ISO 14001, and ISO 45001 certified management systems, and is a DNV-approved manufacturer for copper alloy products.

Core capabilities that set us apart
Specialized in large-diameter and thick-wall pipe production with precision processing of CuNi and non-ferrous alloys.
From raw material to finished product with full quality control, consistent metallurgical properties, and traceable workflows.
Deep expertise in CuNi alloys (C70600, C71500), optimized for seawater corrosion resistance and durability.
Tailored solutions for non-standard sizes and special requirements. Flexible production for project-based and long-term supply.
Dedicated technical team with 26 patented technologies in non-ferrous metal processing, equipment design, and manufacturing.
Strict quality control across all stages. Compliance with ASTM/ASME, EN, JIS. Proven in high-demand environments.
