Glass fibre wazalwa ngo-1930. Kuyinto uhlobo wezinto ezingaphili-non-metallic izincwadi ezinyatheliswa pyrophyllite, asebenza ngebhethri isihlabathi, limestone, dolomite, calcite, brucite, boric acid, soda umlotha nezinye izinto zokusetshenziswa zamakhemikhali. It has isisindo ukukhanya, namandla high, okusezingeni eliphezulu futhi ongaphakeme lokushisa ukumelana, corrosio ...
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