... , AS,JIS, BS, etc. By using advanced logistic management system, the company produces various kinds of anchors (heavy duty anchors ... , wedge anchors, sleeve anchors, drop-in anchors, spring toggles, gravity toggles, nylon wall plug, ... the advice wholeheartedly. Drop-In Anchor 1.Non-knurling Drop-in anchor2.Knurling drop-in anchor3 .Half knurling drop-in anchor.4.stainless ...