Because of budget and public enterprises that beauty still has less. The production technology of rubber parts to replace the synthetic rubber in each of the conflicting sources, it cannot be concluded.
Due to budget and there is little awareness of the enterprises. The technology to produce synthetic rubber to replace the data in each of the conflict can not be concluded.
Due to budget and awareness of enterprises are also less. The production technology of synthetic rubber to replace that information in each source are also conflicting cannot conclude.