Sichuan Petroleum Administration Bureau of Drilling (四川石油管理总局钻探局)

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When operating a winch, the posture should be upright and in tandem

When operating a winch, the posture should be upright and in tandem (early 1950s)

When moving the drill up and down, the drill operator must pay attention to the movement of the drill block

When moving the drill up and down, the drill operator must pay attention to the movement of the drill block (early 1950s)

It is strictly forbidden to hoist persons with a rope

It is strictly forbidden to hoist persons with a rope (early 1950s)

Beware of the cat's head rope getting tangled and breaking, hitting people

Beware of the cat's head rope getting tangled and breaking, hitting people (early 1950s)

Lift the slip handle upwards and be careful with the elevator

Lift the slip handle upwards and be careful with the elevator (early 1950s)

Slips on jacks must be tied with ropes

Slips on jacks must be tied with ropes (early 1950s)

Be sure to take care front and aft when pulling the cat's head

Be sure to take care front and aft when pulling the cat's head (early 1950s)

Pulleys must be covered

Pulleys must be covered (early 1950s)

Push and release the tongs, don't back down, so as not to hit people

Push and release the tongs, don't back down, so as not to hit people (early 1950s)

The position of the tongs should be upright

The position of the tongs should be upright (early 1950s)

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