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QC & Craftsmanship Standards for B2B Orders

Stable quality is not a slogan. It is a repeatable process: checkpoints, records, and release rules that protect your brand and reduce after-sales risk.

In-line QC — issues stopped early, not shipped later Final QC — release only after checklist confirmation Traceability — lot-based records to stabilize reorders

For OEM/ODM projects, QC starts from the approved sample and ends only when packing is verified. Explore OEM/ODM service here: OEM/ODM.

Our QC Philosophy

In B2B supply, quality is measured by repeatability. We treat each order as a program: specs are locked, processes are standardized, and inspection criteria are documented so your next reorder matches the last.

  • Spec first: build to the approved sample and checklist—not “factory habit.”
  • Process control: stop defects during production, not at the warehouse.
  • Record & trace: lot tracking supports stable reorders and fast root-cause response.
  • Packaging is QC: damage prevention is part of product quality.

QC Framework (What We Control)

Incoming Material Check

  • Material consistency and visual grading (as applicable)
  • Hardware and accessory verification (locks, zippers, fittings)
  • Moisture/condition control for storage readiness (when required)

In-line Process QC

  • Critical step checks to prevent cumulative defects
  • Workmanship consistency (finish, assembly, fittings)
  • Random sampling checkpoints per batch

Final QC & Release Rules

  • Cosmetic inspection standard (surface, marks, color uniformity)
  • Function check (fit, locks, moving parts, stability)
  • Playability/setup check for instruments (where applicable)
  • Only released after checklist sign-off

Packing Verification

  • Carton integrity and internal protection confirmation
  • Carton marks, barcodes/labels placement (if requested)
  • Quantity verification and loading readiness

Packaging and delivery standards are documented here: Shipping / Delivery / Packaging.

Instrument QC Focus (String Instruments)

For instruments, QC must cover both appearance and performance. Our inspection points prioritize stable setup and consistent feel for your market tier.

Key Checkpoints

  • Surface & finish: uniformity, dust points, scratches, edge consistency.
  • Assembly & fit: seams, alignment, hardware seating, structural stability.
  • Setup consistency: bridge shaping, string height, nut slots, tuning stability (as applicable).
  • Playability check: basic response and functional performance verification by tier.
  • Accessory match: bundles verified for completeness (case/bow/strings/rosin where relevant).

Accessories QC Focus (Bow / Case / Care)

Accessories affect user experience directly and often generate after-sales issues if not controlled. We inspect durability-critical components and packing protection.

Cases

  • Shell integrity, surface defects, and edge finishing
  • Zippers/locks/hinges function check
  • Interior fit, padding consistency, and accessory compartments
  • Handle & backpack system strength verification

Bows & Small Items

  • Appearance, straightness, and basic balance feel (where applicable)
  • Hair quality consistency and ferrule/eyelet finishing
  • Hardware tightness and moving parts function check
  • Small items packing protection to reduce damage in transit

Looking for accessory programs and bundled solutions? Visit: Accessories.

Reports & Documentation (For Professional Procurement)

  • QC checklist: configurable by product tier and your brand requirements.
  • Photo confirmation: key checkpoints and packing status when requested.
  • Lot traceability: supports repeat-order stability and fast problem isolation.
  • OEM/ODM file control: artwork, packaging files, and approval records managed via the project workflow.

FAQ

Q1: Can you follow our QC standard or checklist?
A: Yes. We can align to your checklist and add brand-specific checkpoints for OEM/ODM programs.

Q2: How do you ensure reorder consistency?
A: We lock the approved sample and create a spec checklist, then maintain process checkpoints and lot records for repeat programs.

Q3: Can we request additional inspection photos or third-party inspection?
A: Yes. For certain orders, photo confirmation and third-party inspection can be arranged based on your procurement policy.

Q4: Is packaging included in QC?
A: Yes. We treat packing verification as part of final release to reduce transit damage and claims.

Build a Stable Supply Program

If you are sourcing for distribution or private label, we recommend starting with a simple brief so we can define QC priorities by tier.

  • Product category and target tier (student / step-up / professional)
  • Target market and sales channel
  • Order plan (trial → repeat → program)
  • Branding and packaging requirements
  • Any specific defect concerns or standards you want to avoid