Semiconductor device.
Shredded mobile phones.
Optical goods, plastic lens manufacturers that make cr 39, mid and hi index lenses.
Freezer fast door.
Electronic scrap.
Tv, refrigerator, washing machine, vacuum cleaner, water dispenser, and air condition.
Copper pipes, earthing materials, copper cable lugs, brass cable glands, switchgear panel board items.
Lab digital burettes, pipette.
Computer scrap.