Gooday processed coffee valves 1.Item No:V12.Weight:1g per valve3.Material:100% New PE4.Outside diameter:20mm5.Inside diameter:17mm6.Thickness:6mm7.Pac
china suppelier valves for cofffee bag 1.Item No:V12.Weight:1g per valve3.Material:100% New PE4.Outside diameter:20mm5.Inside diameter:17mm6.Thickness:6mm7.Pac