STAINLESS STEELS
EN 10088-3 BS970: 1991 COLOUR CODE DESCRIPTION 
European No. 1.4305303S31brown/greenAustenitic freecutting stainless steel       
European No. 1.4307304S11brown/blackAustenitic stainless steel       
European No. 1.4404316S11brown/redAustenitic stainless steel       
European No. 1.4005416S21brown/whiteMartensitic freecutting stainless steel