Medical X-ray detectable thread for medical gauze swab

Medical X-ray detectable thread for medical gauze swab :
1:diameter:0.68mm,0.50mm
2:material:pvc,pp are all ok
3:1250m/kg,1700m/kg
4:color:Blue or black are all ok
5:stretching length could reach to triple and don't fracture
6:products have no stain,no impurity
7:it doen't colour fading under the condition of boiling water
8:it doen's melt under the condition of 135 centigrade steam sterilization,don't fracture and don't adhesion
9:Cell toxicity test is eligible
10:guineapig tardive and Contact test is eligible
11:intracutaneous stimulate test is eligible
12:barium sulphate content is 64.2%