How can buyers verify a silicone factory's real production capability before placing bulk orders?

How can buyers verify a silicone factory's real production capability before placing bulk orders?
Many so-called 'source factories' are actually trading companies that outsource production, leading to quality inconsistency and delivery delays. To verify real capability, first check the business license for 'production and manufacturing' scope—trading-only firms are intermediaries. Request live video tours of workshops, mold rooms, and molding machines; genuine factories welcome this, while intermediaries make excuses. Check the registered address—industrial parks indicate production, while office buildings do not. Evaluate equipment against your product needs: vacuum compression molding presses for solid silicone parts, LSR injection machines with cleanrooms for medical or precision components. Confirm in-house capabilities for mold making, secondary vulcanization, and post-processing like silk screening. Small workshops with only basic presses and outsourced finishing cannot maintain consistent quality. Sample inspection matters: check edge finishing, print quality, and odor—stable quality across samples indicates real production control.