Negative pressure drainage 500ml

Negative pressure drainage 1000ml

Negative pressure drainage 1000ml

Negative pressure drainage combinat...

2000ml base type (single bottle)

2000ml base type (double bottle)

Single bottle frame base 3500ml

Single bottle frame hanging bed 350...

Negative pressure suction device 20...

Double bottle frame base 3500ml

Negative pressure suction ball

Negative pressure suction ball comb...