1. Sign an NDA first. A mutual Non-Disclosure Agreement protects your product idea and the factory’s pricing and processes. Reputable manufacturers expect this step and will not push back on it.

2. Share drawings in stages. Start with a concept sketch or reference image. Once the initial feasibility is confirmed, share detailed 2D drawings, 3D files (STEP, IGES), or a physical reference sample.

3. Ask for a DFM (Design for Manufacturing) review. A good China rotomolding OEM will review your drawing, suggest material thickness, draft angles, and draft angle changes to save cost and prevent manufacturing defects.

• Mold Ownership: The U.S. brand paying for the mold owns the mold. This must be clearly stated in the contract.

• Mold Materials: For rotomolding, molds are typically made from cast aluminum or forged aluminum (e.g., 6061). Ask which material is used and why.

• Prototyping (T1 Sample): Before full production, the factory will produce a first sample (T1). This is your chance to check fit, finish, structural integrity, and color. Do not approve mass production until the T1 sample is exactly to your standard.

• Sampling & Revisions: Expect 1–3 rounds of sampling. Good communication here saves money and time later. Once approved, the sample becomes the golden standard for QC.

Production: Lead times typically run 25–30 days after deposit confirmation and sample approval. During production, ask for regular photo or video updates from the factory floor.

Quality Control (QC): You can rely on the factory’s internal QC or hire a third-party inspection company (like SGS or BV) for an AQL inspection. Always ask for the final inspection report before paying the balance.

Packaging: Confirm carton specifications, drop-test requirements, and shipping marks. Poor packaging is one of the most common causes of damage during ocean freight.

Shipping: Decide between FOB (you control the freight forwarder) or DDP (the factory handles everything to your warehouse). For first-time orders, FOB gives you more visibility and control.

• Time Zones: The 12–15 hour difference means you need a communication rhythm. Most successful brands schedule a weekly call in the morning U.S. time (evening China time) and rely on written updates (email, WeChat, or WhatsApp) for daily progress.

• After-Sales Support: Discuss the warranty and defect policy upfront. If a batch has manufacturing defects, the factory should offer replacement parts or credit on the next order. Clarify how spare parts (hinges, latches, handles) can be ordered.

• Product Improvement: As your product sells, you may want to tweak the design, reduce cost, or add new SKUs. A reliable China OEM partner will work with you on continuous improvement, not just one-off transactions.

Boright Industries welcomes U.S. brands, product developers and sourcing professionals to discuss OEM/ODM projects at SHOT Show 2027.

Bring your drawings, ideas, or current supplier challenges to Booth 55620. We will walk you through tooling, sampling, and production lead times for your specific project.