Honors, Qualifications, Patents

ChengDa is the top Professional Grinding Ball Manufacturers in Northern China

Contact Us

Qualification

Production Standardization Certificate
GBT29490-2013
GBT 45001-2020 ISO 45001
TUV Certification
SGS 2025Certification
SGS 2024Certification
ISO 14001 Certification
ISO 9001 Certification

Patents

patent 11
patent 7
patent 1
patent 14
patent 12
patent 13
patent 10
patent 9
patent 8

Honors

chengda honor4
chengda honor3
chengda honor2
chengda honor5
Scroll to Top