Material Identification
Raw aluminum ingots, steel inserts and glass batches are tested and traced before cutting.
ABOUT OPPGATE CORPORATION
Integrated Manufacturing, Verified Quality & Company Overview
A comprehensive overview of our 20,000 m² production facility in Dalian, China, international certification credentials, 6-stage quality control, and buyer FAQ.
20,000 m² PRODUCTION WORKSHOP
In-House Glass Processing & Profile Fabrication
Dalian Oppgate Glass Windows & Doors Co., Ltd. operates an integrated 20,000 m² manufacturing facility in Dalian, Liaoning, China. Unlike brokers or trading houses, we combine in-house architectural glass deep processing (tempering, laminating, insulating) with precision aluminum and uPVC profile fabrication.
This consolidated manufacturing model ensures tighter quality control, eliminating third-party glass delay risks, and giving overseas contractors a single accountable manufacturer for frames, glazing and hardware.
PROCESS CONTROL
Six Steps From Specification to Shipment
Every customized window and door project follows a documented production protocol.
Precision CNC Cutting & Fabrication
Multi-axis CNC equipment mills, miters and processes profiles to 0.1mm tolerance.
Assembly & Glass Glazing
Corner hydraulic crimping with German two-component glue and automated insulated glazing.
Finished-Product Inspection
100% of finished windows undergo air tightness, water tightness and hardware cycle testing.
Seaworthy Export Packing
Corner foam protectors, multi-layer PE shrink film and solid fumigated wooden crates.
Direct Port Logistics
Direct containerized trucking and customs clearance via Dalian, Qingdao and Tianjin ports.
COMPLIANCE & ACCREDITATION
International Certification Records
These official certificates are verified on the public supplier storefront. Compliance documentation is provided per product model and market specification.
VERIFIED
CE
M.2024.206.C110024uPVC doors and windows
European conformity verified factory standard.VERIFIED
NFRC
FWW-M-172 Series uPVC Casement Window
Energy-performance certified rating.VERIFIED
NOA
26-0311.01Aluminum Fixed Window (L.M.I.)
Miami-Dade Notice of Acceptance hurricane impact compliance.VERIFIED
NFRC
GDD-M-1080 Folding Side-Hinged Door
Energy-performance thermal rating.TESTING STANDARDS
4-Stage Production Inspection Protocol
Incoming Material Control
Spectrometric aluminum alloy checks, vinyl lead-free stability tests, and float glass surface flatness verification.
Process Engineering Checks
Assembly tolerances, corner crimping pull strength, and PA66 polyamide thermal strip shear resistance tests.
Finished Product Audits
Air permeability (Class 4), water penetration resistance (Class 8A) and multi-point lock torque testing.
6 Testing Instruments
Air-water-wind chamber, acoustic sound transmission loss tester, profile thickness gauges and salt spray chambers.
ABOUT DALIAN OPPGATE
20+ Years Glass Expertise Applied to Global Fenestration
Founded in Dalian, Liaoning Province—one of Northeast China's primary international maritime shipping hubs—OPPGATE has evolved from an architectural glass processor into a full-scale fenestration system manufacturer.
Today, our window and door systems are exported to over 40 countries across North America, Europe, Australia, the Middle East and Southeast Asia. We support developers, general contractors, architects and wholesale distributors with tailored engineering shop drawings, custom extrusion finishes, and containerized ocean logistics.
- Drawing-based, sample-based and complete OEM / ODM custom solutions
- Direct sea freight loading from Dalian, Qingdao and Tianjin ports
- 5-Year manufacturer product warranty and lifetime online engineering support
BUYER GUIDELINES & FAQ
Frequently Asked Questions Before Ordering
Direct, transparent answers regarding CAD drawing review, quotation requirements, MOQ, production lead times, export packing and international trade terms.
Can OPPGATE manufacture from project drawings?
Yes. OPPGATE supports drawing-based, sample-based and bespoke project manufacturing. Share your opening schedule, CAD files, structural elevations and glass build-ups for an engineered quotation.
What information is needed for a window or door quotation?
Provide opening dimensions, quantity, operation type, thermal break profile specifications, glass build-up, surface finish, hardware requirements, destination and target schedule.
What is the minimum order quantity (MOQ)?
For standard listed project systems, MOQ starts from 1 set or 1–2 square meters. Bulk containerized supply receives dedicated tiered factory pricing.
How long does production and export delivery take?
Preparation is typically 15–20 days for sample or expedited orders. Full containerized orders take approximately 4–5 weeks depending on custom extrusions and glass specifications.
Which certifications and test reports are applicable?
Depending on the system specified, CE (European conformity), NFRC (thermal and SHGC ratings) and NOA (Miami-Dade hurricane impact) compliance documentation can be supplied.
Can I request a physical sample or finish swatches?
Yes. OPPGATE provides corner section cutaways, aluminum profile swatches, double-glazing samples and hardware demo sets for architectural approval.
How are export orders packaged for sea freight?
Every unit is protected with corner guard caps, wrapped in multi-layer PE moisture-resistant film, and secured in export-grade reinforced fumigation-free wooden crates or steel transport A-frames.
How do I contact the engineering sales team?
Submit your inquiry directly through the official website contact form, email contact@oppgates.com, or request verified Trade Assurance via our official Alibaba storefront.
Company background, factory capacity, certification numbers and quality inspection protocols are based on official public records of Dalian Oppgate Glass Windows & Doors Co., Ltd.Official Manufacturer Portal · September 21, 2026Verified Escrow Payment & Trade Assurance Available via Alibaba Storefront