Last week, the company's customer placed an order for 50 DPSB BOP boxes with specifications 1-1/2, 1500psi, 3-1/2EUE pin and 1-1/4, 1500psi, 2-7/8EUE pin. At present, the cast parts of the blowout preventer box have been arranged for production, and the relevant processes are carried out as planned,

Last week, the DPSB type stuffing box, 3-1/2 EUE X 3LP crossover and 1-1/4 cone packing ordered by our customer have completed the inspection, packaging and other related work, and have been sent to the delivery address required by the customer. The customer has purchased our company's stuffing box,

1. The stuffing box is installed on the wellhead to seal polished rod to prevent crude oil spill well. 2.1. Chemical CompositionThe chemical composition of stuffing boxes shall be any composition of AISI recommended series materials listed below which meet the mechanical property requirements. The c