Steel Block Forging 430(+ 10) Mm X 390(+ 10) Mm X550(+ 10) Mm To Specification Bs: 970, Pt-1-83, Gde817 M4 , Steel Rcs 150(+ /-3) Mmm With Acrosscorner 183(+ /-3) Mm To Specification Bs: 970 Pt-1-1983, Gd: 817 M40 Quantity: 2228