... (Mainland)Material: medical grade PVC;Size: 100ml, 200ml, 300ml, 500ml, 1000ml, 2000m...Color: transparent, translucent, white;Product Category: crew valve, ... Bag 1.Material:medical grade PVC; 2.Size:300ml,500ml etc; 3.Model:common type,anti-reflux flutter type, ... ), type C ( male type)Product Specification:100ml, 200ml, 300ml, 500ml, 1000ml, 2000mlHow to use: 1. Confirm the validity period of the ...