1. Application scope: rubber buffer for Crane anti-collision. 

2. Polyurethane Buffer with Good hardness, good strength, quick recovery, oil resistance, weak acid and alkali resistance, and anti-corrosion.

3. Light dead weight, simple structure, low manufacturing cost and convenient to install and maintain.

4. Basing on Polyurethane Buffer connection mode, polyurethane buffer could be divided into three series: stud type (JHQ-A), platen type (JHQ-B) and flange-plate type (JHQ-C). There are 14 to 21 specifications for each series, and each specification is corresponding to one buffer capacity.