guide bush 1.material:ZCuSn5Pb5Zn5/C83600 2.used in injection ... products. That include self-lubricating major production entities copper sets of machinery, solid mosaic bushings, linear bearings, lubricating fittings, high ... Our company also contracts to produce the entity copper-sleeves of the brands from China, Germany, Japan, USA etc.. 3 ... try our best to supply more information for you. guide bush