round sling :
1.100% high tenacity polyester of out sleeve and inner core  
2.with two ply woven heavy duty outer sleeve  
3.low elongation  
4.each stripe is equal to 1 ton capacity, more than 12t no any black stripe  
5.effective working length available: 1m to 20m  
6.safety factor available 5:1 6:1 7:1 8:1  
7.according to EN 1492-2:2000 

How to use slings:
Never use slings with damages or defects.
Use slings with clear identifications.
Check working load limit,length and working position.
Never use slings with knots.
Never use slings on sharp edges without correct protection.
Use the correct mode factor and check lifting angle.
Trappling the sling when lowering the load should be avoided.
The temperature should be between -40℃and100℃.
Stitching should not be placed over hooks or others lifting devices.
Sling should be stored in dry and clear conditions.Aeay from heat sources,direct sunlight and UV rays.
In case of chemical environment,please check with the manufacturer.
Elongation rate<3% at working load and<10% at breaking load.