natureal rubber and butyl rubber
with different content.bicycle tube isdurable
and major advantage:
Many Size:*2, *4, *6, *7, *8/1.*5/1.*5/2.**5/**3/**1...
value:I/V,F/V,A/V,E/V,D/V.
using:durable,wear resistant
offering competitve price
wwaiting for your inquiry.<span style="\"font-family:"
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