One-Stop Precision Casting Solutions

Your One-Stop Partner for Customized Precision Castings

From R&D and prototyping to large-scale mass production — a single point of contact connecting global customers with the Group's two production bases.

Group Overview

One Chain, Three Bases

Customer requirements are received and converted into technical solutions by our headquarters. After process validation and prototyping in Qingdao, orders move to the fully automated mass-production lines in Liaoning — one order, one responsible entity, full-chain traceability.

1

Solutions & Market

Qingdao · Group HQ

Market communication · Customized R&D
Finishing, assembly & delivery

2

Validation & Small-Batch

Qingdao · Trial-Production Base

Process development · Sample trials
Iterative optimization

3

Mass Production

Liaoning · Production Base

Fully automated silica sol lines
Standardized high-volume delivery

Group HQ · Est. July 2009

Qingdao OS Intelligent Technology Co., Ltd.

  • Overseas marketing hub, deeply engaged in European & American markets
  • Integrated center for technological R&D and precision machining & finishing
  • High-end product processing, assembly, testing, and delivery
  • Backed by Qingdao's superior port resources and foreign trade services
Trial-Production Base · Est. Feb 2018

Qingdao Excellent Metal Products Co., Ltd.

  • Precision casting process development and sample trial production
  • New product verification and iterative process optimization
  • Small-batch delivery of high-end materials (SS / duplex / heat-resistant / alloy / aluminum / nickel-based)
  • Focused on non-standard customization and multi-variety small-batch orders
Mass-Production Base · Est. June 2024

Liaoning Excellent Metal Products Co., Ltd.

  • Located in Kazuo Economic Development Zone, Chaoyang City
  • Fully automated silica sol investment casting production lines
  • Undertakes mature orders, releases capacity, ensures stable delivery
  • Supplies high-consistency precision casting blanks
Process & Materials

Products & Process

Full-process silica sol investment casting (lost-wax), with dual modes for non-standard customization and standardized mass production.

Wax InjectionMolding
AssemblyTreeing
ShellingCoating
DewaxBurnout
PouringMelting
Cut-OffCleaning
Machining & TestFinishing

Material Portfolio

Stainless SteelDuplex SteelHeat-Resistant Steel Carbon SteelAlloy Cast SteelAluminum AlloyNickel-Based Alloy

Covering premium casting materials for high-end equipment. Chemical composition and mechanical properties verified to customer standards (ASTM / EN / GB), with material certificates supplied.

Dual Delivery Modes

ModeBest ForCore Base
Non-Standard CustomNew product development, samples, small batchesQingdao trial-production
Standardized VolumeMature products, high-volume, long-cycle ordersLiaoning mass-production
Quality Assurance

Quality System

Process-level quality control points plus full-chain traceability — from wax pattern to finished part, every step has a standard, a record, and an owner.

DIM

Dimensional Inspection

Gauge sampling + SPC control charts on key dimensions to monitor trends

PRC

Process Control

Control points & daily checklists at critical operations; locked parameters

MAT

Material Verification

Spectral analysis / mechanical testing at both incoming and final stages

TRC

Full Traceability

Pattern, wax batch, and melt numbers traceable to shifts and process records

Start Your Project with a Single Sample

Send us your drawings and requirements — we take care of the rest, from prototyping to mass production.

Contact Our HQ