材料:W118B-W118H:耐5.8级钢。W118CIN:不锈钢,(Aisi 303)。表面:W118…H(镍板):车削,喷砂。W118……B(黑色氧化物)和W118....CIN(不锈钢):车削抛光。颜色:W118……B: Blac-oxidated。W118…H:镀镍。W118……CIN: Natural. Hole: Female threaded blind bore, (thread tolerance 6H). SPECIAL REQUESTS: It's possible to supply the knobs with customised hole d1, on request and for quantities.