... 5---9tons machining UT and MT check ABS Class Efficiency: Annual output of more than 10,000 tons of steel-castingMain ... 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 ...