Dongying City Dongda Machinery Manufacture Co., Ltd.

Temperature tolerance manometer, Digital pressure transmitter, Ruggedized manometer, General manometer, Pressure vaccum manometer, Electric connection

Elevator Links for Petroleum Machinery is an indispensable tool for lifting or dropping elevators of oilfield and gas well drilling operations.Dongda

Tubing elevators is an indispensable tool for lifting or dropping pipe line. Dongda brand Tubing elevators Complete specifications, Solid structure

Oil storage tank is a container, which is the main equipment of oil library. Tank by tank and non-metallic materials can be divided into metal tanks;