Ntuziaka ngwaahịa: Butyl roba sealing teepu bụ nke butyl roba na polyisobutylene na ihe ndị ọzọ, jikọtara ya na polymer mpempe akwụkwọ ihe, nke nwere ọrụ nke nrapado sealing na-agbanwe otu akụkụ ma ọ bụ abụọ-n'akụkụ ihe mgbaze-free sealing teepu Njirimara: 1.High ike.Elu...
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