Produk kënëGB/T6739-1996Design looi. A ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n A nyuɔɔth në pencil. A lëu bï ya tɛmɛ në tɛmɛ de tɛmɛ de tɛmɛ de tɛmɛ de tɛmɛ de tɛmɛ de tɛmɛ de tɛmɛ.

Specifications aye:

1 Tester: ka tɛ̈n bɛ̈ɛ̈i bɛ̈ɛ̈i bɛ̈ɛ̈i bɛ̈ɛ̈i bɛ̈ɛ̈i1000+/-50gA ye luui në kë de pencil core ku test bench, ka pencil ku test bench tɔ̈u45Degree angle has not changed. Degree angle has not changed. Degree angle has not changed. Test bench lëu bɛ̈n lɔ̈ɔ̈m ku bɛ̈n ya tɔ̈ɔ̈u në pencil.

2 A set of Chinese premium drawing pencils6H-6B. Pencil looi; Cut wood rod out3mmA ye cɔl lead core, a ye cɔl circle on sandpaper, a ye cɔl pencil tip ye cɔl plane, a ye cɔl edge ye cɔl sharp.

3 Tɛstɛr adhil tɔ̈u tɔ̈u tɔ̈u tɔ̈u tɔ̈u tɔ̈u tɔ̈u tɔ̈u tɔ̈u tɔ̈u23+/-2Degree Celsius, relative humidity50+/-5% looi.