What is the surface treatment for the gratings?

The surface is treated with a black bituminous coating.

How long is the lead time for production?

The lead time is within 15 workdays for both peak and off-peak seasons.

What are the main applications for these gratings?

They are used in city construction (power, water, sewage, etc.) and communication projects (telecom, TV transmission).

OEM Customized Ductile Iron Tree Bottom Gratings

Name: OEM Customized Ductile Iron Tree Bottom Gratings
Brand: Hebei Mingda International Trading Co., Ltd.
SKU: 761771355

Hebei, ChinaHebei Mingda International Trading Co., Ltd.

US$2.00

50-9,999 Pieces

US$1.00

10,000+ Pieces

Product profile

Customization

Available

Casting Method

Sand Casting

Casting Form Material

Metal

Model NO.

casting

Casting Metal

Cast Iron

Casting Form Usage Count

Permanent

Surface Treatment

Black Bitumen

Surface Roughness

Ra3.2

Standard

En124

Certification

ISO 9001:2008

Pressure

A15

Transport Package

Poly Wooeden Cases or Poly Wooden Pallets

Specification

SGS

Trademark

MINGDA

Origin

Hebei China

Production Capacity

10000 Metric Ton/Metric Tons Per Year

Key features

Customized Production: We produce according to your drawings and requirements, and can design drawings based on your needs.

Wide Class Range: Available in EN 124 classes A15, B125, C250, D400, E600, and F900.

Durable Material: Made of ductile cast iron with anti-impact, anti-corrosion, and anti-rust properties.

Smooth Operation: Casted by mold ensures no big deformation, noise, or vibration when stepped on.

Security Feature: Designed to avoid theft, ensuring safety for underground cable and utility projects.

Black Bitumen Coating: Surface treatment includes a black bituminous coating for enhanced protection.

ISO Certified: Products are certified under ISO9001:2008 standards.

Experienced Manufacturer: Over 10 years of experience in producing machinery parts and valve bodies.

Company profile

Experienced TeamExhibition ExperienceHigh Repeat Buyers ChoiceImporters and Exporters

Hebei Mingda International Trading Co., Ltd.

Hebei, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2007-10-22Nearest Port: Tianjin Port, Qingdao PortAverage Response Time: ≤24hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, EXW

AI-Powered supplier vetting

SummaryHebei Mingda International Trading Co., Ltd. is a China-based limited trading company also identified as a manufacturer/factory, operating from Hebei. Its offering centers on castings, forgings, machining parts, valves, flanges, pipe fittings, and related fabricated components. The supplier reports exporting since 2007, with 90% of sales from exports and markets spanning multiple regions. Production evidence includes more than 10 production lines, stated casting outputs, 21–30 quality-control staff, and TS 16949 and ISO 9001 certifications. It describes capabilities in multiple casting processes and CNC machining, including production from customer drawings. Evidence is insufficient to assess after-sales service, financial credibility, and customer cases; innovation capability is also only partially evidenced through engineering resources and process development claims.

Supplier typeThe supplier is identified as a limited company based in Shijiazhuang, Hebei, China, with its business nature described as a trading company and its entity type also listed as Trading Company, Manufacturer/Factory. Its product and factory-related information supports a combined trading and manufacturing profile.

CertificationsThe supplier reports holding TS 16949 and ISO 9001 management-system certifications. These are explicit certifications relevant to quality and automotive-related management systems, although no certificate scope, issuing body, or validity dates are provided.

R&D capabilityThe supplier reports 11–20 years of R&D engineer experience, multiple production processes including lost-wax and lost-foam casting, and efforts to improve production crafts and quality control. These indicate process-development capability, but there is no explicit evidence of patents, proprietary technologies, formal innovation projects, or new-product development results.

Production capacityProduction capability is supported by more than 10 production lines, 21–30 quality-control staff, stated annual casting outputs, and experience with resin sand, sand molding, hot-core-box, lost-wax, lost-foam, and machining processes. The supplier also reports off-peak lead times within 15 workdays and broad export coverage, indicating established operational capacity.

Customization capabilityThe supplier explicitly states that it makes parts according to customer drawings and offers casting, forging, CNC turning, CNC milling, surface grinding, CNC engraving, and other machining services. Its listed products and processes support customized components across several materials and applications.