Surface state of tinplate

B bright rough Glazed surface obtained after melting treatment of electro tinned smooth raw material strip featuring certain oriented rub stone figure

（1）S stone rough Glazed surface obtained after melting treatment of electro tinned raw material strip featuring certain oriented rub stone figure.

（2）S silver rough Glazed surface obtained after melting treatment of electro tinned raw material strip with rough matt surface

（3）M Dark rough Matt surface of general matt raw material strip without tin melting treatment