... 4× 57/8,41/2×61/8,5×61/2,51/2× 81/2,7×81/2,75/8×91/2,85/8×105/8, ... ,10 3/4,9 5/8,7, 5 1/2,5The top/middle/bottom plugs are only supplied with two-stage cementing ... 41/2 IF*133/8CSG(BCSG),41/2 IF*16CSG(BCSG),41/2 IF*185/8CSG(BCSG),41/2 IF*20CSG(BCSG)Kelly top ... cock valve and bottom cock valveProduct Specification:210×211310×311410×411520×411520×521630×631Cementing BasketSpecification: 5, 51/2,7 ...