Mbụ, e ji mara: 1, High ike, elu toughness, elu creep eguzogide, elu torque: ọdabara na ọkpọkọ oyiyi akwa, nkwonkwo, valvụ ozu, wdg na ụfọdụ esịtidem eri maka nkwado na nchebe. 2, High okpomọkụ eguzogide, hydrolysis eguzogide, UV-eguzogide: ọgwụ na ngwá ...
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