CR90631 bụ polyurethane diacrylate aliphatic. O nwere njirimara nke obere okpomọkụntọhapụ, ọsọ ọgwụgwọ ngwa ngwa, ezigbo iguzogide odo odo, ezigbo ike na obere isi; A na-ejikarị ya eme ihe n'ọhịa nke ihe na-eme ka mbọ UV dị nro.
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