After intense production, overcoming the difficulties brought by the government's environmental protection, more than 200 pieces of spray-welding polished rods, 200 sets of stuffing boxes and packings, 100 sets of wellheads pumping flow tees and 660 pieces of tubing couplings, which our company signed with our customer, have completed production , inspection and packaging last week. They are sent to Tianjin Port and delivered to customers.