Hanwha 640 W (Carbon Grade 2 / Q.TRON XL-G2R.9 BFG

Hanwha 640 W (Carbon Grade 4 / Q.TRON XL-G2.13 BFG

Hyundai 640 W (Carbon Grade 2 / HiS-T640NJ-ES)

Hyundai 640 W (Carbon Grade 4 / HiC-T640OJ)