 ቀለሞች ውስጥ ማመልከቻ befor ብረት substrates ማዘጋጀት እና ተዛማጅ ምርቶች-ሙከራ ለ ዘዴዎች ያልሆኑ ከብረታማ ጩኸት-ማጽዳት abrasives- (ጊባ / 17849-1999 T)
Kukonzekera magawo zitsulo befor ntchito utoto ndi zokhudza mankhwala-Mayeso njira sanali zachitsulo kuphulika modabwitsa abrasives- (GB / T 17849-1999)