How is the product quality guaranteed?

The products will be strictly inspected before shipment, so the quality could be guaranteed.

How are quality problems solved?

If the products are not confirmed to customer samples or have quality problems, our company will be responsible to make compensation for it.

What is the service life of the bricks?

The service life of different bricks is unlike. It also depends on your using condition and method.

What certifications does the company have?

ISO9001 and Test Report, also we could apply other necessary certification.

High Quality Refractory Alumina Interlock Hollow Ball Brick for Furnace

Name: High Quality Refractory Alumina Interlock Hollow Ball Brick for Furnace
Brand: ZHENGZHOU RONGSHENG REFRACTORY CO., LIMITED
SKU: 1911405511

Henan, ChinaZHENGZHOU RONGSHENG REFRACTORY CO., LIMITED

US$600.00

1-4 Tons

US$400.00

5-49 Tons

US$200.00

50+ Tons

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Application

Metallurgy

Material

Alumina Block

Refractoriness (℃)

1580< Refractoriness< 1770

Product Name

Alumina Bubble Brick

Bulk Density g/cm3

1.4-1.7g/cm3

OEM

Yes

Apparent Porosity%

58-62

Max Service Temperature °c

1800°c

Cold Crushing Strength MPa

More Than 9

Sample

Provide

Certification

ISO9001:2008

Advantage

Long Life

Feature

Long Time Materials

Type

Refractory Material

Shape

Brick

Transport Package

Wooden Box

Specification

Customizable

Trademark

RSNC

Origin

China

HS Code

690220000

Production Capacity

5000t/Year

Key features

Low Bulk Density: Density ranges from 1.4-1.7 g/cm3 for excellent thermal insulation.

High Purity Alumina: Al2O3 content up to 99% with low impurities like SiO2 and Fe2O3.

Customizable OEM: OEM service available; shapes and specifications can be customized.

Long Service Life: Durable material designed for long-term use in high-temperature furnaces.

Certified Quality: ISO9001:2008 certified with strict inspection before shipment.

Versatile Application: Used in metallurgy, gasifiers, and electronics industry linings.

No MOQ Limit: Trial orders have no minimum quantity limit for flexible purchasing.

Company profile

Years of Export ExperienceProduct Certification

ZHENGZHOU RONGSHENG REFRACTORY CO., LIMITED

Henan, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 14 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤1.15h

AI-Powered supplier vetting

SummaryThe supplier is a professional refractory-material and kiln-engineering supplier with capabilities covering shaped and unshaped refractory materials, castables, refractory cement, wear-resistant ceramics, graphite electrodes, kiln equipment, and related engineering services. It provides 3D design, sample/design-based customization, ODM, and OEM services, but reported no new products during the past year and has no SDK. Production information indicates two production lines and stated annual capacities including 100,000 tons of refractory bricks, 30,000 tons of refractory castable, 30,000 tons of refractory cement, and 50,000 tons of another refractory castable category. Quality and management certifications include CE, ISO9001:2015, ISO45001:2018, and ISO14001. Service procedures, complaint handling, corrective actions, and finished-product inspection are documented and followed. However, the supplier lacks overseas agents, branches, warehouses, and showrooms, and has no valid manufacturing-capacity...

Supplier typeThe supplier explicitly identifies as a professional technical supplier and operates across refractory materials, castables, ceramics, graphite electrodes, kiln equipment, and kiln-related engineering services. This indicates a specialized industrial supplier rather than a general trading entity.

CertificationsThe supplier reports CE product compliance certification and ISO9001:2015, ISO45001:2018, and ISO14001 management-system certifications. These stated certifications provide explicit evidence of formal quality, occupational safety, and environmental management coverage.

After-Sales capabilityThe supplier has documented and followed procedures for corrective and preventive actions, customer complaints, supplier-service assessment, and quality assurance, and it maintains in-stock service capability. However, it has no overseas warehouse, showroom, agent, or branch, so overseas physical service support is limited.

R&D capabilityThe supplier has three R&D engineers and provides 3D design, ODM, and OEM services, demonstrating design and development capability. However, it reported no new products in the past year and has no available SDK, so evidence of recent product innovation is limited.

Production capacityThe supplier operates two production lines and reports substantial annual capacities, including 100,000 tons of refractory bricks, 30,000 tons of refractory castable, 30,000 tons of refractory cement, and another 50,000-ton refractory castable category. It has defined equipment and finished-product inspection instructions, but lacks a valid contract between the factory and related subcontractor, creating a documented capacity-governance concern.

Customization capabilityThe supplier explicitly offers customization from samples and designs, 3D software design services, and ODM services. These combined capabilities directly support customized product development and manufacturing.