JDB-5（GCr15）JDB-5 is reinforced product of JDB series.It is based
steel GCR15 adn embedded with solid lubricant.it is of high compress
strength and particularly suitable ofr supporting position in
hoisting machines,e.g.The support or stand of windlass and of
crane.But it should not be appliedin water or in acid/alkali
circumstance. Can be used under low,middle and high load
Most suitable for the supporting position of hoisting machine, e.g.
bulldozer supporter, hoister supporter, reeling machine supporter etc.