
Premium Nq Hq Carbon Steel Drilling Equipment Core Bit. 60 Years Experience: Earliest factory producing drilling tools with over 60 years of industry experience. Customization Available: Customized products accepted with provided drawings or samples. Free Samples Offered: Small value free samples available, customer pays delivery cost. ISO Certifications: Certified with ISO9001:2015, ISO45001:2018, and ISO14001 standards. Video Inspection Provided: Video outgoing-inspection service provided for quality assurance. Machinery Test Report: Comprehensive machinery test report provided for every unit. Factory Location: Located in Wuxi City, China, near Shanghai with airport pickup service. 100% Product Inspection: All finished products undergo 100% visual and function inspection.