1　Serging front fly facing

Machine model：EX5204-02/233-4/KS

1-needle overedger for plain seaming, with thread chain cutter

2　Edgestitching hem of fly opening

Machine model：W664P-01GBx364/UT

3-needle (used as “remove middle of needle” on this operation) , cylinder bed, interlock stitch mach

3　Closing front

Machine model：EX5214-M03/333-2×4/KS/PL

2-needle overedger for plain seaming, with thread chain cutter, presser foot lift

4　Closing crotch

Machine model：EX5204-02/233-4/KS

1-needle overedger for plain seaming, with thread chain cutter

5　Closing sides

Machine model：MX5214-M03/333-2X4/KS0E

2-needle overedger for plain seaming, with thread chain cutter

6　Hemming leg openings

Machine model：W664P-08ABx364/UT

3-needle (used as “remove middle of needle” on this operation) , cylinder bed, interlock stitch mach

7　Attaching elastic ring

Machine model：W674-42Bx4255E05/RP/UT

4-needle, cylinder bed, double chainstitch machine for attaching elastic ring (super tacking) on wai