China Aluminum Windows Accessories Suppliers Roundup

Today's digest covers 6 verified Chinese manufacturers and suppliers across all four priority accessory categories: wool pile / fire-rated seal strips, sliding window rollers and pulleys, aluminum thermal break profiles, and multi-accessory hardware. All profiles are sourced directly from B2B platform listings and supplier official websites.

1. Shanghai Gallford Fire Sealing Material Co., Ltd.

Location: Songjiang District, Shanghai Platform: Made-in-China (MIC) — Manufacturer/Factory Founded: 2002 (23 years in operation)

Products: Fire door seals (intumescent, drop-down, smoke-rated), wool pile weather strips for sliding windows and doors, EPDM foam seals, bottom door seals, acoustic seals, aluminum door gaskets. The company's wool pile and brush seals are listed under window accessories on their MIC storefront. 1

Certifications: ISO 9001; UK Certifire certification from Warrington Fire Research Centre; Intertek acoustic test report; products comply with BS 476 (Parts 20–22), EN BS 1634-3, and EN BS 13501-2.

Pricing / MOQ (selected products):

Product	FOB Price	MOQ
Fire door seal strip RM1302	US $0.17/m	10,000 m
Fire door seal strip RM1802	US $0.21/m	10,000 m
Fire door seal strip RM2502	US $0.30/m	10,000 m
Intumescent fire seal F8967	US $0.55–1.50/m	5,000 m

Export markets: Western Europe, Eastern Europe, Southeast Asia, East Asia, South America. Annual output value: US $10M–$50M.

Gallford is primarily a fire-rated sealing specialist, but its wool pile and brush window seals are directly applicable to aluminum sliding window assemblies. MOQs are high (5,000–10,000 m per line), making this a better fit for large fabricators or distributors than small-batch buyers.

Gallford drop-down door seal GF-B11 — aluminum housing with integrated brush seal element — Gallford GF-B11 drop-down seal for sliding doors, showing aluminum housing profile and integrated brush element 1

Gallford Sealing — China Wool Pile & Window Brush Seal product page

2. Haining Leader Seal Co., Ltd.

Location: Haining, Zhejiang Province Platform: Own website (chinleadersealing.com); also listed on Alibaba under brand "LEADER SEAL" Founded: 2002 (20+ years, 10+ years specifically in pile weather strip production)

Products: Wool pile / pile weather strips, coated sealing strip (Q-lon type), TPV sealing strip, magnetic strips, bottom door brushes, rubber seal strips, plastic/PVC sealing strips. The company reports 90+ product types covering all major window and door seal configurations. 2

Certifications: Not explicitly stated on the main website; company references international quality standards and export compliance.

Production scale: 100 dedicated manufacturing lines; 6,500 m² production base; daily output capacity of 100,000 m. Serves 200+ customers across 90+ countries. 80+ obtained patents. 2

MOQ / Pricing: On Alibaba, self-adhesive silicone pile strips start at approximately US $0.15–0.18/m at 20,000 m MOQ; other standard pile lines follow a similar tier. Exact MOQ and pricing should be confirmed via direct inquiry.

Leader Seal is a volume-focused pile strip manufacturer. Its breadth of seal types — pile, coated (Q-lon equivalent), TPV, magnetic — means a single supplier can cover most common window and door seal profiles under one purchase order.

3. Foshan Seajade Windoor Fittings Factory

Location: Xianliao Industrial Zone, Songgang, Nanhai District, Foshan, Guangdong Province Platform: Made-in-China (regular member); Alibaba Gold Supplier; own site (seajadeco.cn) Founded: MIC account registered 2015; close to Foshan's Dali aluminium hardware cluster

Products: Aluminum window and door accessories — hinges, handles (including sliding auto-lock handles), window locks, friction stays, zinc alloy / aluminum rollers and pulleys, gaskets, plastic accessories. Their Alibaba listing shows spiral aluminum sliding window hardware and vertical-lift window accessories. 3

Certifications: Not listed on platform pages; standard manufacturing claims.

Pricing / MOQ (Alibaba listings):

Soft-closing spiral aluminum sliding window hardware set: US $10–20 / set, MOQ 100 pcs
Aluminum UPVC 7-shape window lock handle: ~US $1.63/pc (TradeIndia listing)

Export: Products sold worldwide; "Sanlian" brand used for gasket and plastic accessory lines.

Seajade positions as a one-stop accessories shop for aluminum window fabricators, with roller and pulley items alongside handles and locks. Proximity to Dali town (Foshan's premier hardware cluster) supports a broad component offering. Buyers needing rollers plus handles from a single Foshan source should shortlist this factory.

4. Zhejiang Huaneng Micro Bearing Co., Ltd. (Hune)

Location: Wengyang Industrial Zone, Yueqing City, Zhejiang Province Platform: Own website (hunepulley.com); OEM/ODM factory, no dedicated MIC/Alibaba storefront found Experience: 10+ years in bearings and pulley manufacturing

Products: Sliding window and door rollers / pulleys — zinc alloy sliding roller hangers, aluminum sash pulley wheels, nylon/POM wheel rollers, stainless steel sliding door rollers, adjustable spring upper rollers, height-adjustable anti-sway rollers, 608ZZ bearing-mounted nylon pulleys, heavy-duty double-track sliding door roller assemblies. Bearings are self-produced, allowing tighter tolerances and quieter operation compared to finished-part buyers. 4

Certifications: Not stated on official pages.

MOQ / Pricing: Inquiry basis only (no listed prices found); OEM/ODM accepted for custom bracket sizes and load ratings.

Export markets: Japan, South Korea, Europe.

Huaneng's self-produced bearing capability is the distinguishing factor: most roller suppliers source bearings externally, which introduces variability. A factory controlling bearing production from start to finish can more reliably specify dimensional tolerances relevant for aluminum profile track widths. Buyers with noise or smoothness requirements should request bearing spec sheets.

Aluminum sliding door and window roller sash pulley wheel — Huaneng aluminum sash pulley wheel for sliding door and window applications 4

5. Foshan Pailian Aluminium Ltd. (Zhonglian Aluminium)

Location: Foshan, Guangdong Province Platform: Own website (pailian-aluminium.com); OEM/ODM accepted; exports via FOB Shenzhen/Guangzhou/Foshan Founded: 30+ years in aluminum profile manufacturing

Products: Thermal break aluminum extrusion profiles (alloy 6063-T5) for windows and doors, handrails, and curtain walls; standard profiles up to 80-Series; aluminum casement/sliding window profiles; aluminum CNC machined parts; surface treatments include anodizing, powder coating, wood grain transfer, fluorocarbon coating, electrophoresis. 5

Certifications: ISO 9001:2015, ISO 14001, CE certification (European compliance).

Production capacity: Annual output exceeding 60,000 tonnes; full process from aluminum melting through extrusion, surface treatment, and CNC machining.

MOQ / Pricing: Minimum order for custom colors: 1T. Standard in-house color: 500 kg. Payment: 30% deposit, balance before shipment.

Pailian is one of the more credible Foshan thermal break profile sources for European-standard supply chains, holding CE alongside both ISO quality and environmental system certifications. The full in-house process chain — melting, extrusion, surface treatment — reduces inter-vendor tolerance scatter that affects assembled window system performance.

Foshan Pailian thermal break 6063 aluminum profile cross-section, typical 80-Series window configuration 5

6. WB Aluminum (Foshan)

Location: Foshan, Guangdong Province Platform: Own website (wb-aluminum.com) Certifications: SGS, ISO certified 6

Products: Aluminum extrusion profiles for windows and doors; hardware accessories. Products target construction and architectural applications.

Export markets: Nigeria, Saudi Arabia, UAE, and other markets. Annual export value approximately US $5 million.

MOQ / Pricing: Website content not directly accessible during this research round; buyers should contact directly via wb-aluminum.com for current price sheets and MOQ tiers. SGS and ISO status confirmed via web presence.

WB Aluminum is relevant for buyers supplying West African and GCC markets, where the supplier's existing trade routes and export documentation (SGS inspection reports) reduce customs friction. The dual SGS + ISO certification is a practical shortlisting filter for procurement teams managing compliance-heavy import processes.

Sourcing notes for this issue

Seal strips: Gallford (high MOQ, fire-rated focus) and Leader Seal (high-volume wool pile, 90+ countries) represent the two main ends of the seal strip buyer spectrum. Gallford suits projects requiring UK fire certification; Leader Seal is better for standard volume pile strip sourcing.
Rollers/pulleys: Huaneng (Hune) adds a self-bearing-manufacturing differentiator not seen in the Jun 4–5 coverage. Seajade (Foshan) remains the more accessible option for small-batch roller procurement alongside other fittings.
Profile assemblies: Pailian (ISO + CE + 60,000T capacity) and WB Aluminum (SGS + ISO, African/GCC routes) cover different market needs in the thermal break and standard profile space. Pailian is better positioned for European-spec projects; WB Aluminum suits suppliers active in emerging markets.

Coverage notes: Pricing and MOQ data sourced from platform listings and official sites as of the research date. "Inquiry basis" entries indicate no public listed price was found; contact suppliers directly for current quotes.

China Aluminum Windows Accessories Suppliers Roundup — June 6, 2026