How do you control quality?

We arrange sample confirmation before production if needed. During production, professional QC staff control quality and manufacture according to confirmed samples.

What are the standard dimensions?

Standard dimensions are 10x10 mm, 12x12 mm, and 15x15 mm, with standard lengths of 1100mm, 2200mm, and 2500mm.

The Minimum Order Quantity is 500 PCS.

Door Seal

Name: Smoke Seal / Batwing Seal/ Door Seal
Brand: Hangzhou Biyou Building Materials Technology Co., Ltd.
SKU: 881476615

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

US$0.50

1,000-1,999 Meters

US$0.40

2,000+ Meters

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Material

Composite Materials

Location

Install Around The Perimeter of Plain or Rebated

Model NO.

BY-DF-003

Funtion

Soundproof Smoke and Fire Prevention

Seal Color

Black, Brown, White or Customized

Min / Max Gap

4-5 mm

Advantage

Soundproof Smoke and Fire Prevention

Project Solution Capablity

Total Solution for Projects

MOQ

500PCS

Type

Sealing Strip

Seal Tape Kind

High Density Colored PTFE Tapes

Mildew Proof

After-sales Service

3 Years

Seal Tape Usage

Solid PC

State

Solid PC

Bonding Material

PVC

Transport Package

500PC/Carton

Specification

2100-2500mm

Trademark

Origin

Zhejiang

HS Code

392530

Production Capacity

50000PC

Key features

Multi-Functional Sealing: Prevents smoke, fire, sound, draughts, dust, and light effectively.

Flame-Retardant Material: Features a semi-rigid, flexible flame retardant PVC carrier with twin blades.

Easy Self-Adhesive Install: Fits quickly in door frame rebates without removing the door.

Color Customization: Available in Black, White, Clear, and customized colors upon request.

OEM & Design Service: Supports customization based on customer drawings or samples.

3-Year After-Sales Service: Comprehensive support for 3 years to ensure reliable performance.

Professional QC Control: Sample confirmation and professional QC staff ensure quality.

Established Manufacturer: Factory established in 2005 with over 20 years of industry experience.

Company profile

Hangzhou Biyou Building Materials Technology Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2014-12-05Nearest Port: Shanghai, NingboAverage Response Time: ≤10.61hTerms 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 and a professional manufacturer of door and window seals, fire and acoustic seal products with more than 20 years of experience.

Q:What is the payment method?

For samples: T/T, Western Union. For orders: We prefer T/T. For new customers, usually 30% advanced payment before production and 70% before delivery.

Q:Do you offer free samples?

Yes, free samples are available.

Q:Do you offer OEM service?

Yes, we can customize according to your drawings or make drawings according to your sample as per your requirements.

Q:What is the delivery time?

Generally, we arrange shipment within 7-30 days after receiving the deposit, depending on your purchasing quantities.