Is the seal suitable for outdoor use?

Yes, the seal is unaffected by sunlight, ozone, and ultraviolet rays, and is impervious to fungus and mildew.

What is the hardness of the seal?

The hardness ranges from 40 to 80 Shore A, with specific options like 50-90 Shore A available.

Premium Smoke Door Corner Seal for Single and Double Doors

Name: Premium Smoke Door Corner Seal for Single and Double Doors
Brand: Hebei Changlian Rubber and Plastic Products Co., Ltd
SKU: 2221454835

Hebei, ChinaHebei Changlian Rubber and Plastic Products Co., Ltd

US$0.90-3.90

500 Meters

Sample price:US$0.01/meter.Request sample

Product profile

Customization

Available

Material

PVC

Application

Door Frames, Window Sashesapartment, Home.Office.H

Model NO.

Customized

Effect

Dustproof

Cross-Section Shape

Customized

Color

Black

Shape

Custom Shape

Performance

Waterproof,Weather,Anti-Aging.Anti-Dust

Function

Edge Protection

Quality

High Quality

Technology

Extrusion

Hardness

40 - 80 Shore a

Transport Package

Plastic Bag + Carton Box

Specification

Customizable

Trademark

Changlian

Origin

Hebei Qinghe

HS Code

3926909090

Production Capacity

50000PCS/Year

Key features

Customizable Shape: Cross-section shape is fully customized to meet specific door frame requirements.

Multi-Color Options: Available in grey, white, black, brown, and red to blend with various frames.

Dual Protection Seal: Co-extruded PVC provides both acoustic insulation and effective smoke sealing.

High Durability: Resistant to sunlight, ozone, UV rays, fungus, and mildew for long-term use.

Self-Adhesive Design: Comes with aggressive self-adhesive backing tape on both sides for easy installation.

Fire Retardant Material: Manufactured from rigid and flexible flame retardant PVC that is self-extinguishing.

Versatile Application: Suitable for timber or steel door and window frames in new or retrofit projects.

Professional Manufacturer: Over 20 years of manufacturing experience with experienced R&D team support.

Company profile

Standardized quality controlProduction Process VisualizationManagement CertificationFull Customization

Hebei Changlian Rubber and Plastic Products Co., Ltd

Hebei, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 6 Years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤1.25h

AI-Powered supplier vetting

SummaryThe supplier demonstrates broad customization and OEM/ODM capabilities, with documented procedures for finished-product inspection, service assessment, corrective actions, and complaint handling. Production evidence includes rubber-processing, testing, machining, and extrusion equipment, plus 100% finished-product inspection and three quality inspectors. However, the supplier reports no overseas warehouse, showroom, agents or branches, and no offline trade-show participation. It also lacks raw-material traceability, reported no new products in the past year, and has no SDK. Financial information is insufficient for a credibility judgment. Certification details are incomplete, identifying only “Others.”

Supplier typeThe supplier has exported goods for six years and accepts multiple international quotation and payment terms. It provides OEM and ODM services, but reports no overseas warehouse, showroom, agents, branches, or offline trade-show participation; therefore, it is evidenced primarily as an export-oriented manufacturer rather than an overseas-service provider.

After-Sales capabilityWritten procedures and followed records exist for service assessment, corrective and preventive actions, and customer complaints. However, the supplier has no overseas service facilities or representatives, and the number of countries offering overseas services is stated as zero, limiting direct overseas support.

R&D capabilityThe supplier offers design customization and ODM services, but reports no new products during the past year and no available SDK. It also states that it has not established an AI model for data-driven decision management, indicating limited documented recent innovation activity.

Production capacityThe supplier lists extensive rubber-processing, extrusion, machining, testing, and vulcanization equipment. It performs 100% finished-product inspection, employs three quality inspectors, and reports lead times within 15 working days in both peak and off-season, providing explicit evidence of production and quality-control capacity.

Customization capabilityThe supplier explicitly supports customization from samples, designs, full customization, minor customization, and flexible customization. It also provides ODM services and OEM services for popular brands, demonstrating broad documented customization capability.

Product Q&A

Q:Why choose your company?

We are a factory with over 20 years of manufacturing experience and an experienced R&D team, offering high quality products at reasonable prices.

Q:Do you provide free samples?

Yes, we can provide samples free of charge, but the buyer is required to pay for the freight costs.

Q:What are your terms of payment?

For payments less than or equal to 1000 USD, 100% payment is required. For payments greater than 1000 USD, 30% is paid in advance, and the balance is paid before delivery.

Q:How long is the delivery time?

Generally, it takes 5-10 days if goods are in stock, or 15-20 days if not in stock, depending on the quantity.

Q:What products can you supply?

We supply rubber extrusion, rubber seal strips, plastic seal strips, door seals, rubber gaskets, molded rubber parts, and rubber hoses.