china concrete pump parts elbow pipe factory cifa and


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Цена:26,80 $*

Количество:



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Трекер стоимости

Месяц Минимальная цена Макс. стоимость
Sep-16-2025 31.88 $* 33.96 $*
Aug-16-2025 31.27 $* 33.98 $*
Jul-16-2025 26.76 $* 27.98 $*
Jun-16-2025 30.5 $* 32.72 $*
May-16-2025 26.66 $* 27.31 $*
Apr-16-2025 30.91 $* 32.85 $*
Mar-16-2025 29.67 $* 30.93 $*
Feb-16-2025 29.18 $* 30.75 $*
Jan-16-2025 29.75 $* 30.92 $*

Характеристики



Product Description




Name
Material
Specification
Weight(kgs)
Common life time (m)
Max work pressure(bar)
Normal Bend
ZG40Mn2
DN125R27590
16
6000-8000
126
Wear-resistant bend
Mn13-4
DN125R27590
16.5
20000-25000
132
Twin wall bend
Cr20NiCu1Mo+G20
DN125R27590
15
60000-80000
 91
Twin wall bend
GX350+G20
DN125R27590
15
80000-150000
 98




Products Description


Casting elbows now mostly adopt negative pressure casting. When modeling, first cover a layer of plastic film on the template, use a vacuum pump to suck the film tightly on the template, then put on the sand box, and then fill the sand box with modeling materials. The plastic film covers the top surface of the sand box, and the vacuum pump is connected to suck out the air between the sand particles to form a negative pressure in the sand mold. At the same time, the vacuum of the template is removed, so that the plastic film is absorbed on the surface of the mold cavity. The sand mold has the effect of the pressure difference. Certain strength and hardness. After removing the mold, closing the box, pouring, solidification and cooling, the negative pressure is removed, and the desired casting can be obtained.




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