AI China Buying & Sourcing Agent

Product Knowledge

Sourcing knowledge & practical guides

Insights7

Plain T-shirt laid flat beside a garment measurement sketch

Product Knowledge

Which Chest Measurement Is on the T-Shirt Size Sheet?

Ask whether a T-shirt chart describes the wearer or the finished garment, then keep its measurement points and sample condition visible.

Plastic storage boxes shown with a closed lid and an open interior

Product Knowledge

A Storage Box Has More Than One Useful Set of Dimensions

Distinguish the closed box footprint, usable internal space and empty nesting arrangement when comparing plastic storage boxes.

Flat-pack furniture panel joint with a cam connector, mating bolt and separate wooden locating dowels

Product Knowledge

Flat-Pack Furniture: Which Cam Connector Belongs to This Panel?

A cam connector belongs to a matched joint design. Read the panel drilling, connector bolt and cam specification together when reviewing flat-pack furniture.

Unbranded adjustable wrench with jaw opening and head-clearance reference parts

Product Knowledge

An adjustable wrench has more than one size

Overall length, jaw opening and head clearance answer different questions. Read them separately when choosing an adjustable wrench.

Unbranded centrifugal water pump beside a schematic flow–head graph for illustration

Product Knowledge

Reading a Water Pump Curve: Keep Flow and Head at the Same Point

For a centrifugal water pump, read a flow and head pair from the relevant curve instead of combining two separate maximum ratings.

Electronics & electrical category illustration

Product Knowledge

Feature Phone Sourcing: Specifications, Verification, and Acceptance for B2B Buyers

A practical B2B sourcing guide for feature phones, covering core specifications, regional cluster fit, verification steps, a hypothetical acceptance scenario, and a pre-order checklist.