成都惠灵丰金刚石钻头有限公司
Founded in 2001, Chengdu Huilingfeng Diamond Bit Co., Ltd. (hereafter abbreviated as HLF Co.,) has a history of over 15 years now. HLF is now grown up to be one of the strongest company in technology development and innovation in China.
Up till now, HLF has obtained 18 patents, all related to the design, process and manufacture of PDC bits and diamond bits, and has been granted the “Certification of Hi-Tech Enterprise” issued by the Ministry of Science and Technology” since 2009.
HLF has obtained the certification for ISO 9001 since 2003 and the certification for API monogram Spec 7 and subsequently API monogram Spec 7-1 since 2006. HLF products strictly conform to ISO 9001 and API Spec Q1 quality management system requirements.
Website：www.cdhlf.com