About product and suppliers:
            67,377 bitumen products are offered for sale by suppliers on Alibaba.com, of which waterproof membrane accounts for 15%, bitumen accounts for 8%, and other waterproofing materials accounts for 1%. 

A wide variety of bitumen options are available to you, 

There are 64,201 suppliers who sells bitumen on Alibaba.com, mainly located in Asia. The top countries of suppliers are United Arab Emirates, China, and India, from which the percentage of bitumen supply is 1%, 94%, and 1% respectively.