Characteristics of Outer Thickened Oil Casing PipeThe outer thickened oil casing pipe adopts the round pipe thread of the taper pipe and is thickened through the joint to realize the joint and seal. It is one of the basic thread buckle types issued by the Petroleum Association. Its tooth shape is triangular, dome round bottom, the tooth angle is ...
lvy lee - Permanent Steel Manufacturing Co.,Ltd
Posted 8 months agoPress
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