Sourcing & Supplier Guides

Working with a Chinese Factory: Drawings, GD&T and Fast Technical Replies

Working with a Chinese Factory: Drawings, GD&T and Fast Technical Replies

Engineering communication with Chinese factories: drawing packages, GD&T conventions, revision control, fast replies. BQUQ engineers answer by name.

Sourcing Red Flags: 12 Warning Signs in a Chinese Supplier's Quote

Sourcing Red Flags: 12 Warning Signs in a Chinese Supplier's Quote

12 warning signs in Chinese supplier quotes: instant pricing, vague materials, silent tolerances, no questions, trader signals. See the clean BQUQ baseline.

Multi-Process Parts: When One Factory Beats Four Suppliers

Multi-Process Parts: When One Factory Beats Four Suppliers

Multi-process parts from one factory vs four suppliers: tolerance stacking, logistics, fit ownership, cost math. BQUQ runs four-plus lines in Dongguan.

Why Custom Parts Take 2–6 Weeks: Lead Time, Deconstructed

Why Custom Parts Take 2–6 Weeks: Lead Time, Deconstructed

Why custom parts take 2-6 weeks: material, programming, tooling, scheduling, inspection, finishing. How to read a lead time. BQUQ: stage-based lead times.

Quality Inspection in China: AQL, Third-Party Labs and Pre-Shipment Checks

Quality Inspection in China: AQL, Third-Party Labs and Pre-Shipment Checks

Inspect parts from Chinese factories: AQL sampling, defect classes, third-party labs, pre-shipment steps. BQUQ ships batch inspection reports as standard.

Drawing to Approved Sample: The Workflow That Prevents Rework

Drawing to Approved Sample: The Workflow That Prevents Rework

Drawing-to-approved-sample workflow: DFM review, first-article inspection, approval gates, control plans that stop rework. BQUQ quotes in 12 hours.

ISO 9001: Verifying a Factory Certificate Actually Means Something

ISO 9001: Verifying a Factory Certificate Actually Means Something

Verify an ISO 9001 certificate from a Chinese factory: issuing body accreditation, scope line, validity, audit history. BQUQ cert verifiable on request.

Material Certificates: MTRs and Traceability for Imported Parts

Material Certificates: MTRs and Traceability for Imported Parts

Material certificates for imported parts: EN 10204 3.1 vs 2.2, heat numbers, MTR contents, traceability. BQUQ delivers certificates with each batch.

The RFQ Data Package: What to Send a Chinese Machine Shop

The RFQ Data Package: What to Send a Chinese Machine Shop

What to include in an RFQ data package for Chinese machine shops: drawing checklist, STEP files, tolerance strategy, material specs, finish callouts and commercial terms.

Protecting Your IP with a Chinese Factory: NDA to Tooling Ownership

Protecting Your IP with a Chinese Factory: NDA to Tooling Ownership

Protect IP with Chinese factories: NDA scope, drawing control, tooling ownership, Chinese registration. BQUQ signs NDAs and documents ownership.

Trial Orders From Chinese Factories: Small-Lot Qualification Done Right

Trial Orders From Chinese Factories: Small-Lot Qualification Done Right

How to run a trial order with a Chinese factory: scope, quantities, inspection points, documentation and the qualification criteria that make the trial meaningful.

Samples vs Production in China: Why Approval Isn't the End

Samples vs Production in China: Why Approval Isn't the End

Sample approval vs mass production in China: differences in process, tooling, materials and inspection, and how to make production match approved samples.

Communicating With a Chinese Factory: RFQs That Get Good Answers

Communicating With a Chinese Factory: RFQs That Get Good Answers

How to communicate with Chinese factories effectively: RFQ format, drawing standards, email etiquette, response times and red flags in supplier replies.

Payment Terms with Chinese Factories: T/T, Deposits and Incoterms

Payment Terms with Chinese Factories: T/T, Deposits and Incoterms

Payment terms with Chinese factories: T/T deposits and balances, L/C, Incoterms EXW/FOB/CIF/DDP, milestone structures. BQUQ: 30% deposit, terms in writing.

Sourcing & Supplier Guides2026-08-292026-08-30124
China Manufacturing Regions: Where Your Part Should Be Made

China Manufacturing Regions: Where Your Part Should Be Made

China manufacturing regions compared for sourcing: Dongguan, Shenzhen, Suzhou, Ningbo and more — strengths, tolerances, industries and how region choice affects quality.


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