Explore our premium architectural configurations optimized for global distribution, high-end hotel upgrades, and customized projects.
In modern interior architecture, the transition from traditional shower curtains and bulky framed enclosures to frameless glass tub doors represents a major design upgrade. Homeowners, builders, and hotel owners prioritize spatial continuity, visual clarity, and hygiene. A frameless system replaces thick metal frame profiles with heavy-duty structural tempered glass and precision hinges or track configurations, making spaces feel larger, brighter, and cleaner.
Sourcing frameless systems globally requires a deep understanding of manufacturing capabilities, safety certifications, and supply chain logistics. Frameless enclosures must be manufactured to precise tolerances, because minor design errors can lead to glass displacement or dangerous structural failures. Choosing the right China-based manufacturing partner is crucial. Top factories combine advanced CNC glass cutting with high-quality metal hardware manufacturing to ensure safe, durable products that meet global construction standards.
Located in the Xiaoshan District of Hangzhou, Hangzhou Kaifeng Sanitary Ware Co., Ltd. is a leading manufacturer of premium bathroom equipment. Founded in 2005, Kaifeng operates a modern 20,000-square-meter facility, integrating R&D, quality control, and advanced production lines. We export 80% of our products to highly regulated markets, including the USA, Canada, the UK, Germany, South America, and the Middle East, demonstrating our commitment to international quality standards.
Understanding the operational and cost advantages that make China the primary manufacturing hub for glass shower and tub doors.
We use automated horizontal tempering furnaces to heat glass to over 600°C, followed by rapid air cooling. This creates high surface compression, producing safety glass that breaks into small, blunt particles if damaged, meeting ANSI Z97.1 and EN 12150 standards.
Located in Xiaoshan, Hangzhou, we have direct access to raw float glass manufacturers, specialized chemical coating providers, and precision hardware suppliers. This geographic clustering lowers raw material shipping costs and speeds up design prototyping.
We support extensive customization, including custom glass thicknesses (6mm, 8mm, 10mm), unique surface treatments (clear, frosted, tinted, pattern-etched), and hardware styles (matte black, brushed gold, satin nickel, polished chrome) to match brand requirements.
Review the standard technical configurations and materials used in Hangzhou Kaifeng's high-performance frameless glass enclosures.
| Specification Parameter | Standard Options | Heavy-Duty Commercial Option |
|---|---|---|
| Glass Thickness | 6mm (1/4") or 8mm (5/16") Tempered Glass | 10mm (3/8") or 12mm (1/2") Heavy-Grade Safety Glass |
| Glass Safety Certifications | EN 12150-1, SGCC (ANSI Z97.1-2015), AS/NZS 2208 | CUPC, SGCC Impact-Tested Premium Laminated Glass |
| Hardware Material | Anodized Aluminum Alloy (6063-T5) | Grade 304 / 316 Stainless Steel & Solid Brass Hinges |
| Surface Protection | Standard Hydrophobic Easy-Clean Coating (One Side) | Dual-sided Anti-limescale Permanent Nano-shielding |
| Sliding Mechanism | Top roller-guided smooth sliders | Heavy dual-wheel structural roller bar systems |
| Adjustability Range | Up to 10mm (3/8") out-of-plumb adjustment | Custom structural profile with 15mm-20mm adjustment |
B2B buyers face unique challenges when importing large volumes of glass products. Frameless glass tub doors require careful logistics planning. Glass is heavy, fragile, and must be packaged securely to handle shipping vibrations, forklift movements, and temperature changes. Hangzhou Kaifeng Sanitary Ware Co., Ltd. addresses these challenges with specialized packing systems and quality control procedures.
We pack our products using drop-test certified boxes with heavy honeycomb padding, edge protectors, and individual hardware boxes to prevent direct contact with the glass. This packaging reduces transport damage to less than 0.5% on overseas routes, protecting product quality from factory floors to building sites.
We provide volume pricing and customized packaging for hotel developers and multi-family residential general contractors. We can supply pre-drilled glass, custom hardware styles, and components organized by room to simplify installation and reduce on-site labor costs.
We offer reliable supply chain support for distributors. With an annual capacity of 60,000 shower rooms and 36,000 freestanding bathtubs, we help partners maintain consistent inventory levels during peak demand seasons.
Explore our manufacturing facility, storage spaces, and production lines located in Xiaoshan District, Hangzhou.
We operate under the ISO 9001:2000 Quality Management System, monitoring every step of production. Our team tests hinge swing life, tracks the water tightness of bottom gaskets, and inspects glass edge finishing prior to dispatch. We regularly present our innovations at major international trade shows, including the Canton Fair, IBS in the USA, and The Big 5 in Dubai.










Our sanitary ware meets global safety, quality, and environmental regulations.












Find answers to common questions about customization, shipping standards, and manufacturing frameless tub doors in China.
Select a category to view specialized designs, sliding systems, hinges, and bathtubs.
Explore our additional selections of freestanding bathtubs, space-saving sliding shower screens, and custom enclosures.