Couplings sand casting alloy steel CouplingsMain Product: We can manufacture carbon steel, alloy steel, high alloy steel, stainless steel, cast steel as per the Standard GB,JB,CB,ZB,JIS,ASTM,SAE,DIN or special requirements from Customers.1) Chain wheel, gear wheel, sheave, idler wheel, platen, winding drum, helm seat etc. for deck machining use apply to vessel use.(2) Parts for steam turbine.(3) ...