Product Name: Cementing multiple Plug (Top Plug and Bottom Plug) Product characteristics: The Composite Plug is different from general casing plug. It is used mainly in the composite casing. The top inner hole of the casing is large. The bottom inner hole of the casing is small. It can be used in two sizes of casing for separating the slurry and the mud. Its length must meet the requirements of cementing head sizes. The conditions of designing and manufacturing measure up to the standard SY/T5394-2004. It can be drilled out with rock bits. Specifications: 5 1/2"*7", 5 1/2"*10 3/4", 9 5/8"*10 3/4". We can manufacture according to the user's special request
