- Cause
Bolt Ring filler m16 (thickness 20 mm) not have to inspect due to it rarely used and just out of TSS stock. It must be made to order and can't deliver to TSS on time.
- Improvement
Use steel plate to cut by CNC and drill as drawing. (I.D 18 and O.D 40) Then hot-dip galvanizing , QC In-
Spection to dimention and Coating thickness galvanized was accetance.
- Prevention
This ring filler is a special equiptment so that made to order only. TSS should draft drawing and hire out source for produce it. All of process should be finishing before inspection date.