There are various types of stainless steel: There are different grades of stainless steel that are determined by its hardness (HRC), and hair scissors should be anywhere between 45 HRC and 60 HRC.
ເຫຼັກແຕນເລດມີຫລາຍປະເພດ: ມີເຫລັກສະແຕນເລດທີ່ແຕກຕ່າງກັນຫລາຍຊະນິດທີ່ຖືກ ກໍາ ນົດໂດຍຄວາມແຂງຂອງມັນ (HRC), ແລະມີດຕັດຜົມຄວນຈະຢູ່ທຸກບ່ອນລະຫວ່າງ 45 HRC ແລະ 60 HRC.