High-Precision Black Granite Structural Components

At ZHHIMG®, we strictly utilize proprietary high-density black granite, a natural material with physical properties that far exceed standard commercial marble or lower-grade stones often used by smaller manufacturers.

•   Exceptional Density & Stability: Our granite features a density of approximately 3100kg/m³, providing the heavy mass required for superior vibration damping and structural rigidity.

•   Nano-Level Precision: Leveraging over 30 years of manual lapping expertise, our master technicians achieve surface flatness and parallelism that sensors can barely measure—literally "hand-lapping" precision to the nanometer level.

•   Unmatched Manufacturing Scale: With a 200,000 $m^2$ facility, we can process single-piece granite components up to 20 meters in length and 100 tons in weight.

•   Industry-Leading Certification: We are the only manufacturer in the sector to simultaneously hold ISO 9001, ISO 45001, ISO 14001, and CE certifications.