What payment terms do you accept?

We accept USD, EURO, and YUAN (RMB). Payment types include T/T, LC, D/P, PayPal, Western Union, and Small-amount payment.

What is the maximum part size and weight?

The maximum dimension is 600mm for diameter or length, and the part weight ranges from 2g to 30kgs.

Do you provide OEM and ODM services?

Yes, we offer both OEM and ODM services, including customization from samples.

Precision Machining Thin Wall Ring Connector Parts Stainless Steel 316L

Name: Precision Machining Thin Wall Ring Connector Parts Stainless Steel 316L
Brand: Dongying Highco Metal Manufacturing Co., Ltd.
SKU: 1907646805

Shandong, ChinaDongying Highco Metal Manufacturing Co., Ltd.

US$0.80-40.00

100 Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Casting Method

Thermal Gravity Casting

Process

Investment Casting

Model NO.

MG17

Molding Technics

Gravity Casting

Application

Machinery Parts

Material

Cast Steel

Surface Preparation

Polishing

Surface Roughness

Ra0.8

Machining Tolerance

+/-0.02mm

Standard

AISI

Certification

ISO 9001:2015

Casting Tolerance

CT5-CT6

General Machining Tolerance

ISO2768-Mk

Special Treatment

Sand Blasting, Polishing, Elctro Polishing

Lead Time

45-60days

Transport Package

Carton and Pallet

Specification

Trademark

customized

Origin

Shandong Province, China

Production Capacity

2000sets Per Month

Key features

Precision Tolerance: Machining tolerance of +/-0.02mm with fine surface roughness Ra0.8.

Wide Material Range: Supports Stainless Steel (304/316L), Carbon Steel, and Alloy Steel.

Customization Options: Customizable casting tolerance (CT5-CT6) and special surface treatments.

Quality Assurance: ISO 9001:2015 certified with 100% final inspection before shipment.

Fast Sample Cycle: Development cycle of samples takes only 25-35 days.

Large Capacity: Production capacity exceeds 100 tons per month with parts up to 30kgs.

Expert Team: Technical staff with over 15 years of experience in investment casting.

Low MOQ: Minimum Order Quantity is 1 piece, suitable for prototyping.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceSelf-brandedPatents Awarded

Dongying Highco Metal Manufacturing Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 6 Years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤2.84h

AI-Powered supplier vetting

SummaryDongying Highco Metal Manufacturing Co., Ltd. is identified as a limited, combined-type supplier and is described elsewhere as a trading company engaged in precision mechanical equipment processing and sales, precision castings, ship accessories, and automotive accessories. It offers steel castings and has OEM experience with well-known brands, export capability, in-stock service, and a stated 90% export-sales share. Its facilities include CNC lathes, drilling, polishing, pressing, and related equipment, with sample-based customization. Quality and complaint-handling procedures are documented and followed, although the approved-supplier list lacks signatures or dates. Key limitations are the absence of an available SDK, valid manufacturing-capacity contracts with associated subcontractors, overseas warehouses, overseas agents or branches, overseas showrooms, and offline trade-show participation. Financial information is limited to year labels without assessable financial values. An audit by TÜV Rheinland...

Supplier typeThe supplier is listed as a limited company with a combined organizational type, while its company nature is identified as a trading company. Its stated business scope covers processing and sales of precision mechanical equipment and accessories, precision castings, ship accessories, and automotive accessories; the primary offered product is steel casting.

CertificationsThe supplier is explicitly stated to hold a valid import and export license. A TÜV Rheinland audit is also recorded with coverage from April 24, 2025 to April 23, 2026, but the audit type is given only as “1” and the evaluation result as “0,” without an interpretable certification or pass description.

After-Sales capabilityThe supplier lists overseas service offerings including debugging, maintenance, repair, training, and equipment installation, and has documented, followed procedures for corrective actions and customer complaints. However, it has no overseas agents or branches, serves zero stated countries, and has no overseas warehouse or showroom, limiting demonstrated international service infrastructure.

Production capacityThe supplier reports in-stock capacity, a facility containing CNC lathes, lathes, drilling, polishing, pressing, and digital-caliper equipment, and 90% of sales from exports with self-operated import/export rights. It also reports written and followed inspection, supplier-capability assessment, corrective-action, and complaint procedures, although there is no valid manufacturing-capacity contract with the factory and associated subcontractors and the supplier reports zero cooperative suppliers.

Customization capabilityThe supplier explicitly provides customization from samples and has OEM capability for well-known brands, directly supporting its ability to produce customized products based on customer samples or brand requirements. No broader design-development or SDK capability is established.

Product Q&A

Q:What is the minimum order quantity?

The minimum order quantity is 1 piece.

Q:What materials are available for customization?

We support Stainless Steel (304/304L, 316/316L, 310, 410), Duplex Stainless Steel (2205, 2507), Carbon Steel (C45, 1020), and Alloy Steel (4310, 8620, 16MnCr5).

Q:What is the lead time for samples and mass production?

The sample development cycle is 25-35 days. The accepted lead time for mass production is 30-60 days.

Q:How do you guarantee product quality?

We provide a pre-production sample before mass production, 100% checking during each production sector, and 100% final inspection before shipment. We are ISO 9001:2015 certified.

Q:What surface treatments are available?

Available treatments include Sand Blasting, Polishing, Electro Polishing, Zinc Plating, Hot Dip Galvanized, Nickel Plating, Passivation, Mirror Polishing, Brush Polishing, PE Coating, and Powder Coating.