青云翻译

Tubing, as opposed to other welding tubing high pressure stronger, lifting effect better. Brake the form of snuff brake, driving

Tubing, relative to the other more high pressure resistance capacity of welded tubing, lifting work better for you. Braking brake used to snuff out form,

The drill tubing, is opposite in other welding drill tubing bears the high-pressured ability to be stronger, the lifting effect is better.The brake uses died checks the form, the travel

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Tubing, relative to the other more high pressure resistance capacity of welded tubing, lifting work better for you. Braking brake used to snuff out form,