Mainstream B2B procurement platforms fall into three categories: comprehensive international platforms like Alibaba and Global Sources offer diverse product ranges and numerous suppliers; specialized industry platforms focus specifically on adult products with more professional suppliers but limited choices; regional platforms like India's TradeIndia or Korea's EC21 excel in specific markets.

Take Alibaba as an example: its advantages include a well-established credit system and transaction guarantees, supporting various procurement methods from small wholesale to large OEM orders. However, supplier quality varies significantly, requiring strong screening capabilities from buyers.

Establishing a systematic supplier evaluation framework is crucial. Basic qualification verification includes business licenses, production permits, and product certifications. Production capacity assessment should focus on factory scale, equipment level, and monthly output. Quality system review requires understanding whether suppliers have obtained certifications like ISO9001 and implemented complete quality control processes.

Transaction record analysis provides important insights into supplier reliability. Platform data reveals key metrics like order volume, customer reviews, and dispute rates. Prioritizing platform-certified "Gold Suppliers" or "Verified Manufacturers" is recommended, as these suppliers typically undergo stricter platform audits.

Different B2B platforms emphasize various functional services. Buyers should focus on these core features: sourcing request services allow suppliers to proactively quote, saving search time; credit guarantee services provide transaction protection, reducing procurement risks; sample services support small trial orders to verify product quality; inspection services enable third-party quality checks through the platform.

Logistics support is another crucial consideration. Large platforms typically offer integrated logistics solutions including sea freight, air cargo, and express delivery, with assistance in customs clearance. In comparison, smaller specialized platforms may have more limited logistics support.