... G1000 4.low price, high quality About us Brand NamePlace of OriginStandardxinxinZhejiang China ( mainland)SGSAbout bearing steel ball Product nameBearing ... stainless steel Size 0.5 - 200mmGrade G10 - G1000Hardness Hrc61 - 66Application Bearing , grinding materials , micro mists , polishing , decoration , toys , ... 0.008% MAX. China good quality and high precision Bearing Steel Ball ( SGS approved )