用于各种碳钢钢管的环缝对接。

Fbutt welding of the carbon steel pipe.

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用于各种碳钢钢管的环缝对接。

For butt welding of the carbon steel pipe.

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清洁活塞环槽或油环开缝，绝对不能损伤金属部分。

Be sure that you do not remove metal when cleaning ring grooves or oil slots.

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清洁活塞环槽或油环开缝，绝对不能损伤金属部分。

Be sure that you do not remove metal when cleaning ring grooves or oil slots.

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