์ œ๋กœ ์—‘์†ฆ, ์˜ค์ผ€์•„๋ˆ„์Šค ํ”„๋ฆฌ๋ฏธ์—„, ์ƒˆํ„ด ํ”„๋กœ ์—‘์†ฆ, ์˜ค๋ฆฌ์ง„ ํ”„๋กœ ๋ธ”๋ž™์ค‘์— ๊ณ ๋ฏผ์ค‘์ธ๋ฐ


์˜ค๋ฆฌ์ง„ ํ”„๋กœ๋„ ์—‘์†ฆ์‚ฌ๋ฉด 4mm์ž„? ํ‘น์‹ ํ•œํŽธ์ธ๊ฐ€? ๊ทธ๋ฆฌ๊ณ  ๋„ท์ด ๋น„๊ตํ•ด์„œ ์Šฌ๋ผ๊ฐ ์–ด๋А์ •๋ˆ์ง€ ๊ถ๊ธˆํ•œ๋ฐ