... Z, ZZ, RS, 2RS, 2RZTypical applications: screws jacks, textile machinery, food processing, vertical openers and so on.NO.2: Packaging ... in various devices, such as furnaces, fire equipment, food machinery, iron and steel smelting equipment and others, suitable for ... ball screws,linear guide cylinder,self-lubricating bearings,all imports of domestic bearings,V-belt,standard parts,stainless steel,building ...