About products and suppliers
766 oil casing coupling products are offered for sale by suppliers on Alibaba.com, of which pipe fittings accounts for 16%.
A wide variety of oil casing coupling options are available to you, such as manufacturing plant, machinery repair shops and construction works.You can also choose from oem, odm and obm oil casing coupling,as well as from stainless steel, alloy steel, and cast iron oil casing coupling,And whether oil casing coupling is black, {2}, or {3}.