What's your delivery time?

Generally, we will arrange shipment within 7-30 days after receiving the deposit and according to your purchasing quantities .

How do you control the quality?

We will arrange sample confirmation before production if you need . During the production, we have professional QC staffs control the quality and manufacture in accordance to your confirmed samples. Welcome your visit to factory.

Heavy Automatic Door Drop Seal

Name: Heavy Automatic Door Drop Seal
Brand: Hangzhou Biyou Building Materials Technology Co., Ltd.
SKU: 1992033515

Zhejiang, ChinaHangzhou Biyou Building Materials Technology Co., Ltd.

US$5.80

500-599 Sets

US$5.50

600+ Sets

Product profile

Customization

Available

After-Sales Service

3 Years

Warranty

3 Years

Model NO.

ADDS-N

Type

Door Drop Seal

Material

Alu, Silicon

Min / Max Gap

3-13mm

Seal Color

Black, Grey

Suface Finish

Aluminium Anodised 15 Microns

Location

Install on The Bottom of Single or Double Doors

Funtion

Prevents Fire or Smoke Spreading Across Various Fi

Advantage

Soundproof Smoke and Fire Prevention

Transport Package

30PC/Carton

Specification

380-1200mm

Trademark

Sanou

Origin

Zhejiang

HS Code

732690

Production Capacity

5000PC

Key features

Automatic Operation: Spring loaded mechanism lifts seal clear of floor when door opens.

Fire and Smoke Prevention: Prevents fire or smoke spreading across various fire compartments.

Soundproof Performance: Provides excellent barrier to airborne sound for acoustic attenuation.

Adjustable Gap Range: Sealing gap adjustable from 3mm to 13mm for various floor conditions.

Concealed Installation: Mortised into bottom edge with stainless steel escutcheon plates.

Durable Materials: Constructed from Aluminium Alloy and Rubber with anodized finish.

Customizable Length: Standard lengths available and can be cut to specific sizes.

3-Year Warranty: Comprehensive 3-year warranty coverage for after-sales service.

Company profile

Hangzhou Biyou Building Materials Technology Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2014-12-05Nearest Port: Shanghai, NingboAverage Response Time: ≤8.60hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAT, FAS, DDP, DAP, CIP, CPT, Others, FCA

AI-Powered supplier vetting

SummaryHangzhou Biyou Building Materials Technology Co., Ltd. is identified as a China-based manufacturer/factory with production in Jiaxing, Zhejiang, specializing in weather sealing and passive fire protection products. It reports ISO 9001 and ISO 14001 management-system certifications, 10 production lines, 6–10 R&D engineers, and 6–10 quality-control staff. The supplier states that 90% of sales are exports, has self-operated import/export rights, and began exporting in 2014. Its stated product range covers fire, smoke, acoustic, TPE, silicone, and PVC sealing products. The available trade records show limited transaction evidence, with one transaction associated with each listed buyer record; therefore, customer-case depth and financial credibility cannot be fully assessed. After-sales service and product customization are mentioned or implied only partially and lack sufficient detail for a definitive evaluation.

Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory, with an international sales office in Hangzhou and a factory in Jiashan, Jiaxing, Zhejiang. Its stated business focuses on manufacturing weather-sealing and passive-fire products, supported by 10 production lines.

CertificationsThe supplier reports holding ISO 9001 and ISO 14001 management-system certifications. These certifications provide explicit evidence of formal quality and environmental management systems, although the slices do not provide certificate numbers, issuing bodies, or validity dates.

After-Sales capabilityThe company states that it provides efficient after-sales service and has professional R&D resources and high-quality products. However, no specific service scope, response process, support locations, warranty terms, or service-performance evidence is provided.

R&D capabilityThe supplier states that it has a professional R&D group, and the reported total experience of its R&D engineers is 6–10 years. This supports the existence of an experienced R&D function, but the slices do not document patents, new-product launches, proprietary technologies, or measurable innovation outcomes.

Production capacityThe supplier identifies itself as a manufacturer and reports 10 production lines, 6–10 quality-control staff, and a factory location in Jiaxing, Zhejiang. These facts provide explicit evidence of established production infrastructure and quality-control staffing.

Product Q&A

Q:Are you a manufacturer or trading company?

We are an International trading company also is a professional door and windows seal,fire and acoustic seal products manufacturer with more than 20 years experience for domestic and International market.

Q:What is payment method?

For samples: T/T, western union. For orders: We prefer T/T, other ways should be confirmed first. For new customer,30% advanced payment before producing ,70% before delivering usually.

Q:Do you offer free samples?

Free samples are available .

Q:Do you offer OEM service and can you product as our drawings?

Yes, we can customize according to your drawing or make drawing according to sample as your requirement.

Q:Do you accept our design on boxes?

Yes. We accept.