... Hollow selfdrilll grouted anchor embodies drilling, grouting and anchoring as a whole. Widely used as ... mine, water conservancy projects, building foundation, roadbed reinforcement and geological diseases treatment such as landslip, crack, sinkage. ... left10GJ89891000KN left10GJ1081081300KN left10Remarks :the main difference between the self-drilling pipe shed and semi self-drilling pipe shed ...