trinhyenhoa | Tiếng Anh Kỹ Thuật - Part 8

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How is Gold made?

trinhyenhoa - January 19, 2014 0

How are Floppy Disks made?

trinhyenhoa - January 19, 2014 0

Fire Extinguisher

trinhyenhoa - January 19, 2014 0

How are file cabinets made?

trinhyenhoa - January 18, 2014 0

Eyeglass lenses

trinhyenhoa - January 18, 2014 0

Expanded polystyrene foam (EPF)

trinhyenhoa - January 18, 2014 0

How is Cutlery made?

trinhyenhoa - January 18, 2014 0

Corrugated Cardboard

trinhyenhoa - January 18, 2014 0

How is cooking oil made?

trinhyenhoa - January 18, 2014 0

Concrete

trinhyenhoa - January 18, 2014 0

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