摸进她的内裤里疯狂揉她动图视频,亚洲人成网亚洲欧洲无码久久,久久婷婷五月综合97色一本一本,久久久精品人妻一区亚美研究所

　　Product type: Single magnesium alloy sacrifice anode

　　Implementation standard: GB/T17731-2015 magnesium alloy sacrifice anode

　　Main uses:

　　Magnesium alloy sacrifice anode is suitable for underground and fresh water oil, gas, water supply and drainage pipeline,

　　underground cable, chemical industry, communication, harbor, ship, reservoir gate and other engineering anti-corrosion protection.

　　Product features:

　　The magnesium alloy produced by our company is made of high quality raw materials. The anode potential is negative and the quantity of electricity generated per unit mass is large. It is an ideal sacrificial anode material.

　　Suitable for cathodic protection of metal structures in soil, fresh water and seawater, such as oil and gas pipelines, storage tanks, hot water exchangers, condensers and so on.

　　Magnesium alloy sacrifice anodes are produced according to the national standard GB/T17731-2015 Magnesium alloy Sacrifice Anodes, and the anodes used for pipelines also comply

　　with SY/T0019-97 Design Code for Cathodic Protection of Sacrifice Anodes for Buried Steel Pipelines.

　　The product has the following characteristics:

　　(1) Small specific gravity and negative potential;

　　(2) The driving voltage for iron is high and the current efficiency is low;

　　(3) Especially suitable for high resistivity medium. (For resistivity greater than 100 ω ·m, it is recommended to use banded magnesium alloy sacrificial anode)

　　Precautions for use:

　　(1) Collision with steel structure should be avoided.

　　(2) When used in the soil, it should be buried in a low-lying wet place.

　　(3) When used in soil, the anode must be buried in a packing bag.

　　(4) When installing, the distance between the pipe and the anode and the distance between the anode and the anode should be greater than or equal to three meters, and the minimum should not be less than 0.3m.

　　(5) After the anode is put into the soil pit in the dry soil area, the packing material should be fully soaked with water before backfilling the soil, so as to avoid the anode cannot fully conduct electricity.