What is the machining tolerance for these parts?

Our machining tolerance is +/-0.02mm with a surface roughness of Ra3.2.

What certifications do your products hold?

Our products are certified with CE and ISO 9001:2008 standards.

What is the minimum order quantity?

The minimum order quantity is 10 sets.

Prime Quality Customized Size 304 316 Stainless Steel Pipe Seamless

Name: Prime Quality Customized Size 304 316 Stainless Steel Pipe Seamless
Brand: Dongying Sanhao International Trade Co., Ltd
SKU: 2023255162

Shandong, ChinaDongying Sanhao International Trade Co., Ltd

US$2.00

10-99 Pieces

US$1.00

100-999 Pieces

US$0.30

1,000+ Pieces

Product profile

Customization

Available

Casting Method

Thermal Gravity Casting

Process

Lost Wax Casting

Model NO.

Part 21

Molding Technics

Gravity Casting

Application

Machinery Parts

Material

Stainless Steel

Surface Preparation

Passivation Treatment

Surface Roughness

Ra3.2

Machining Tolerance

+/-0.02mm

Standard

ANSI

Certification

CE, ISO 9001:2008

Warranty

1 Years

Product Name

Pipe Fittings

Customized Support

OEM, ODM

Application Industry

Machinery, Pump Valve, Automotive, Aviation

Transport Package

by Sea; Paper Box and Plywood Case

Specification

1/4"-4"

Trademark

custom

Origin

China

HS Code

730729

Key features

Custom Color Support: Customerized color available for connection ring and main body.

Custom Brand Support: Laser engraving logo available on the stainless steel cover.

Custom Packaging Support: Customer logo supported for both OPP bags and cartons.

OEM ODM OBM Support: Full customization support including OEM, ODM, and OBM services.

1 Year Warranty: Comprehensive 1-year warranty coverage for the product.

High Precision Machining: Machining tolerance of +/-0.02mm with Ra3.2 surface roughness.

Premium Materials: Available in 304 and 316 stainless steel grades.

CE and ISO Certified: Certified with CE and ISO 9001:2008 standards.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceMulti-language Pioneer

Dongying Sanhao International Trade Co., Ltd

Shandong, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Full Customization CertifiedExport Year: 5 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤0.69h

AI-Powered supplier vetting

SummaryDongying Sanhao International Trade Co., Ltd. is a China-based trading company established in 2018 with three employees. It reports its own machining factory, warehouse, and relationships with other Chinese factories, but the available evidence does not establish production scale or independently verified manufacturing capacity. The supplier exports 90% of total sales and has exported for five years, indicating meaningful international trading experience. It offers full customization and ODM services, but has only one R&D engineer, no SDK, and no new products launched in the last year. It has no stated Fortune 500 cooperation, overseas showroom, overseas agents or branches, offline trade-show participation, or overseas service coverage. Financial records are referenced for 2020–2022, but no financial results are provided. Raw-material traceability is unknown, and service-capability assessment relies on relevant records without a written procedure.

Supplier typeThe supplier is explicitly identified as a trading company and limited company based in Dongying, Shandong, China, with three employees. Its description also states that it integrates design, production, trade, and technical services and has an own machining factory and warehouse, but the available information does not change its registered business type.

After-Sales capabilityThe supplier has no overseas showroom, overseas agent or branch, offline trade-show participation, or overseas service coverage, while its stated service proximity is Qingdao Port. It accepts common quotation and payment terms and reports one-month lead times, but these facts do not establish a broader after-sales service network.

R&D capabilityThe supplier has one R&D engineer, no available SDK, and no new products launched in the last year. Although it offers ODM services and full customization, the stated lack of recent new-product output and limited R&D staffing indicate a clear weakness in demonstrated innovation activity.

Customization capabilityThe supplier explicitly provides full customization and ODM services, which directly supports customized design and product-development requirements. This is one of the supplier’s strongest documented capabilities, although only one R&D engineer is reported.

Client casesThe supplier reports no cooperation with Fortune 500 companies and provides no named customer cases or other verifiable reference projects. A repeat-buyer preference of 50%–80% is stated, but it does not identify customers or substantiate specific cases.