This production line mainly produces products with a length between 3FT to 10FT with less than 15inch OD. The main products are : PACKER、 HANGER、 LINER WIPER PLUG、 PUMP DOWN PLUG、SSD、WEG、SAGS. It has 9 sets of equipment, including 2 Manual Lathes, 5 CNC lathes, 1 deep hole boring machine and 1 pipe threading machine.