What certification do you have? What's your standard?

We have ISO CE certification. Our standard is DIN, AAMA, AS/NZS, China GB.

What's the delivery time for samples and mass production?

(1). 1 week to open the new moulds and make free samples. (2). 2-3 weeks after receipt of deposit and confirmation of the order.

Can you provide special export packing and loading?

Yes, we can follow end customers required for special packing and loading, and we have experienced engineer team to design and improve your idea.

What's your Quality Control Plan?

We have strictly 5S quality control plan in our factory, 1S is Incoming materials quality control, 2S is Production line quality control, 3S is Packing quality control, 4S Warehouse quality control and 5S loading quality control plan. We can avoid the Inferior quality issues.

High-Quality Soundproof Aluminum Profiles for Windows and Doors

Name: High-Quality Soundproof Aluminum Profiles for Windows and Doors
Brand: Linyi Shengao Aluminum Industry Co., Ltd.
SKU: 2085659402

Shandong, ChinaLinyi Shengao Aluminum Industry Co., Ltd.

US$2,800.00

20-99 Tons

US$2,300.00

100+ Tons

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

After-Sale Service Is Available

Warranty

10 Years

Model NO.

SA-lz2273

Type

Window & Door Aluminium Profile, Decoration Aluminium Profile, Heat Sink Aluminium Profile, Glass Wall Aluminium Profile, Industrial Aluminium Profile

Shape

Flat

Grade

6000 Series

Temper

T3-T8

Window & Door Aluminium Profile

60 Series

Alloy

Surface Finishing

Powder Spraying

Alloying Ingredient

6063

Certification

CE, SONCAP, ISO, CIQ, RoHS, TUV

Polished Aluminum Profile

Mechanical Polishing

Color

Customized

Powder Coating Thickness

Over 80um

Anodized Thickness

15um

Free Mould Design

Yes

Factory

Yes

OEM

Yes

Transport Package

Protective Film

Specification

Customized Specification

Trademark

Sainnor

Origin

China

HS Code

76042100

Production Capacity

50, 000 Tons/Year

Key features

10-Year Warranty: Comprehensive 10-year warranty coverage for all aluminum profiles.

Customized Color: Full color customization available with powder coating thickness over 80um.

Free Mould Design: Complimentary mold design services for custom profile shapes and sizes.

Multiple Certifications: Certified with CE, ISO, RoHS, TUV, SONCAP, and CIQ standards.

High Production Capacity: Annual output of 50,000 tons with advanced extrusion and coating lines.

Flexible MOQ: Accepts trial orders and small quantities before mass production.

Diverse Surface Treatments: Offers powder coating, anodizing, electrophoresis, wood grain, and sandblasting.

Strict Quality Control: Implements a 5S quality control plan covering materials to loading.

Company profile

Importers and ExportersSelf-branded

Linyi Shengao Aluminum Industry Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedNearest Port: Qingdao PortAverage Response Time: ≤0.54h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryThe supplier is an aluminum-profile manufacturer based in Shandong, China, producing profiles for windows, doors, and industrial applications. It reports OEM service for well-known brands, customization options, six production lines, extrusion, painting, and oxidation facilities, and 11–20 quality-control staff. Written procedures and records exist for service assessment, corrective and preventive actions, and customer complaints. However, the supplier has no stated supplier-management-system certification, no available SDK, only one year of R&D engineer experience, and no overseas warehouses, showrooms, agents, branches, or offline trade-show participation. Export sales represent 31%–40% of total sales, while overseas service coverage is reported as zero. Financial information is represented only by years rather than financial results, so credibility cannot be determined.

Supplier typeThe supplier is identified as an aluminum-profile manufacturer specializing in window, door, and industrial sections. Its stated operations include extrusion molding, painting, and oxidation treatment, indicating a manufacturing supplier rather than a purely trading or service company.

CertificationsThe supplier-management-system certification field is explicitly recorded as NIL. No certification holding is evidenced in the provided information, but the record does not establish whether other product or process certifications exist.

After-Sales capabilityThe supplier has written procedures and followed records for service capability assessment, corrective and preventive actions, and customer complaints. However, it reports zero countries with overseas services and no overseas warehouse, showroom, agent, or branch, limiting demonstrated international after-sales coverage.

R&D capabilityThe supplier reports no available SDK and only one year of total R&D engineer experience. It does report an AI model for big-data processing and management decision support, but this does not sufficiently demonstrate strong product or engineering innovation capability.

Production capacityThe supplier operates six production lines, including extrusion molding, painting, and oxidation treatment, and has 11–20 quality-control staff. Its stated departmental structure includes production and quality-inspection functions, providing explicit evidence of established manufacturing capacity.

Customization capabilityThe supplier provides OEM services for well-known brands and offers customization for aluminum profiles used in windows, doors, and industrial applications. These statements directly support its ability to produce customized products.