The work mainly includes:

(1) Heating, bending, welding, deburring, and shaping metal bars into anchor chain rings or anchor chain accessories;

(2) Conduct heat treatment and tensile test of anchor chain rings or anchor chain accessories;

(3) Repair and inspect defects;

(4) Bundle and surface treat anchors Chain links or anchor chain accessories;

(5) Casting propellers;

(6) Marking, measuring, shoveling, polishing, and taper hole processing of propeller blanks;< /p>

(7) Conduct propeller static balance test;

(8) Pack propeller.

The following types of work are included in this occupation:

Propeller fitter, chain maker, anchor chain heat treater, anchor chain tensile tester, anchor chain packing and painting worker