butyl tire tube 750-16,all sizes, one of the biggest factory in China, good quality, have 5mpa, 6mpa and 8.4 mpa three grades

 butyl tire tube 750-16, butyl tire tube and natural tire tube,all sizes,one of the biggest factory in China, good quality, have 5.5-6, 7.8,10 mpa,  welcome to enquiry Welcome to visit our factory or let me send you the sample for your test  .

butyl tire tube 750-16