No.
The plastics that have the mark 7 are polycarbonate, PC or other plastics. pc is a colorless and transparent thermoplastic material. pc has good transparency, high impact strength, excellent thermal stability and cold resistance. However, it is not resistant to strong acids and bases, is not UV resistant, and has poor abrasion resistance.
PC material made of plastic containers, may release toxic bisphenol A, the higher the temperature release more, the faster the speed, so do not use heat, and do not direct sunlight.
Use
1, optical lighting
Used in the manufacture of large lampshades, protective glass, optical instruments, left and right eyepiece barrels, etc., but also can be widely used in aircraft transparent materials.
2, electronic and electrical
Polycarbonate is an excellent E (120 ℃) level of insulating materials, used in the manufacture of insulated connectors, coil frames, tube holders, insulated bushings, telephone shells and parts, battery shells of the miner's lamps and so on. It can also be used to make parts with high dimensional accuracy, such as optical disks, telephones, electronic computers, video recorders, telephone exchanges, signal relays and other communication equipment.
3, machinery and equipment
Used in the manufacture of various gears, racks, worm gears, worm gears, bearings, cams, bolts, levers, crankshafts, ratchets, but also for some machinery and equipment shells, covers and frames and other parts.
4, medical equipment
Cups, cylinders, bottles and dental instruments, pharmaceutical containers and surgical instruments for medical purposes, and can even be used as artificial kidneys, artificial lungs and other artificial organs.
Refer to People's Daily Online - Is it safe to use plastic in daily life? See the "ID" on plastic products