Structure: rubber / steel cord; Types: we had General type, Wear resistant type, Cold resistant type, Acid/alkaline resistant type, Ozone resistance type, Heat resistant type, Flame retardant type...and so on. If you want to know details of any type, please let me know by phone call 86-177 68337405or E-mail huanyu_roger@aliyun.com. international packing or according customer request.