Ningbo Xianglong Metal Products Co., Ltd. stands at the intersection of traditional craftsmanship and Industry 4.0 automation. With 26 years of deep expertise, we don't just manufacture square drains; we engineer hydraulic systems that balance aesthetic minimalism with high-velocity evacuation. As a global leading shower square drains factory, our commitment to E-E-A-T principles ensures that every product passing through our 13,000 square meter facility meets the rigorous demands of modern architecture.
Our operational framework spans the entire value chain—from initial R&D and algorithmic fluid design to precision laser cutting and automated assembly. This vertical integration allows us to provide unrivaled ODM/OEM customization services to world-renowned brands such as AOB (USA) and DELTA (Australia).
Engineering the next generation of sanitary technology
Our R&D department is currently transitioning from standard SUS304 to Ultra-Corrosion Resistant Nano-Coated Alloys. These materials provide superior resistance to harsh cleaning agents and hard water minerals found in global markets.
Future iterations of our square and linear drains incorporate biomimetic vortex structures. This technology maximizes drainage speed (up to 40L/min) while minimizing noise and hair clogging, essential for high-end hospitality suites.
Looking toward 2025, we are prototyping "Smart Drains" equipped with non-intrusive water flow sensors that alert facility managers to potential clogs before they overflow, targeting the commercial real estate sector.
Tailored drainage systems for diverse architectural environments
Integrating concealed tile-insert drains that maintain the visual continuity of high-end stone flooring while ensuring rapid water evacuation for multi-head rain showers.
Deploying heavy-duty square drains for industrial washrooms and healthcare facilities. Features include antimicrobial surface treatments and tamper-proof locking mechanisms.
Our adjustable-length linear drains allow for on-site customization, solving the complexity of retrofitting older plumbing systems with modern, minimalist designs.
At Ningbo Xianglong, we have redefined the "Made in China" paradigm through Supply Chain Resilience and Efficiency. Our facility employs a Synchronous Production Model, where CNC laser cutting, precision stamping, and automated welding occur in a continuous flow.
We ensure all products meet UPC/cUPC requirements, handling the complex logistics and documentation for our partners like AOB (USA).
Meeting EN 1253 standards for drainage in buildings, we provide the necessary TUV documentation and CE marking for the EU market.
Beyond manufacturing, we offer technical localized support including installation guides in multiple languages and CAD/BIM files for architects.



TUV certification + dual ISO certifications + 16 patents—safeguarding steady corporate growth with international standards.
Witnessed by numerous partner brands worldwide during international trade fairs.
26 years of deep expertise in the metal products sector, providing one-stop ODM/OEM customization.
Bathroom Remodeling: Luxury Triangle Floor Drains
Commercial Hospitality: High-Flow Vertical Drains
Balcony Drainage: Rotatable Weather-Proof Drains
Industrial Washrooms: Heavy Duty Square Drains
Swimming Pools: Anti-Clog Deck Drains
While many competitors utilize plastic or lower-grade alloys, Ningbo Xianglong specializes in medical-grade SUS304 stainless steel. This material offers a unique combination of tensile strength and chemical resistance. Our square drains are engineered with a specific wall thickness of 1.2mm to 2.0mm, preventing warping during high-temperature water cycles. Furthermore, our PVD (Physical Vapor Deposition) vacuum coating process ensures that finishes like Matte Black, Brushed Gold, and Rose Gold are molecularly bonded to the steel, preventing peeling or fading over decades of use.
One of the primary challenges in modern apartment complexes is the maintenance of the water seal. Our square drains feature an integrated odor-proof mechanical trap that prevents sewer gas backflow even when the water seal evaporates. This innovation is critical for projects in arid climates or for guest bathrooms that see infrequent use.
As a responsible global leader, we have integrated Energy Management Systems (EMS) within our ISO 14001 framework. Our factory utilizes recycled steel scrap for non-critical components, and our wastewater treatment facility ensures that no harmful chemicals from the polishing process enter the local ecosystem. For global enterprises with strict ESG mandates, Ningbo Xianglong is the preferred "Green Factory" partner.
SUS304 offers the best balance of corrosion resistance, durability, and cost. It is highly resistant to the chlorine and acidity found in common cleaning supplies, ensuring the drain won't rust or pit over time.
Yes, with a 13,000 SQM facility and over 26 years of experience, we specialize in high-volume production for international brands like AOB and DELTA, ensuring consistent quality and on-time delivery.
Square drains are ideal for traditional center-sloped showers. Linear drains allow for a single-slope "barrier-free" floor design, making them popular for modern minimalist aesthetics and ADA-compliant bathrooms.
We use PVD vacuum coating which is significantly more durable than traditional powder coating or electroplating. It creates a surface that is harder than the steel itself.