SelfDrillingAnchorAccessoriesSuppliers Product Introduction Self-drilling anchor centralizer or called spacers, which is used to make sure anchoring hole is straight, a very good deviation control on hole straightness. 聽 Product Parameter SizeOut diameter (mm)Weight (kg) R32720.30 R38780.30 R51910.30 T761301.00 T30700.25 T40880.45 T521121.20 T731301.40 T1031653.00 聽 Product photo 聽聽 Features...