supply of spares of seal steam supply valve and seal steam leak off valve of 210 mw atps mppgcl chachai. , seal steam supply valveassly drg no. 1-13239-02000 , spring base , carrier , ring , coupling , stud m 24 fo x 55 ri , nut hex m 24 , hex soc hd cap scru m 10 x 40-p , grub screw gm 6 x 10 , hex soc hd cap scru m 12 x 40-p , pin taper 4 x 32 , stud pm 12 x 80 , nut hex pm 12-8/r16 , scru hex pm 8 x 16-8.8/r16 , washer tab st 8.4 , seal steam leak off valve assly drg no 0-13240-02000 , bush , valve assembly , spring support , carrier , coupling , ring , pin taper 4 x 32 , stud pm 12 x 80 , grub screw gm 6 x 10 , grub screw gm 6 x 16 , hex soc hd cap scru m 10 x 40-p , stud m 24 fo x 55 ri , nut hex m 24 , hex soc hd cap scru m 12 x 40-p , nut hex pm 12-8/r16 , gasket , scru hex pm 8 x 16-8.8/r16 , lock washer m8 , packing