27091 black steel coupling products are offered for sale by suppliers on Alibaba.com, of which pipe fittings accounts for 5%, shaft couplings accounts for 5%.
A wide variety of black steel coupling options are available to you, such as aluminium, steel and stainless steel.You can also choose from flexible, universal and rigid black steel coupling,As well as from flexible, rigid black steel coupling, and whether black steel coupling is 10mm, 20mm, or 30mm.