There should be a four-month safe interval after application and then processed.
2. Grain-saving phosphorus: Grain-protecting phosphorus is a grain protection agent developed by the Chengdu Grain Storage Science Research Institute of the State Grain Administration. It has good control effect on stored grain pests, especially suitable for rural grain storage. The ratio of the amount of grain-protected phosphorus to the original grain is 1:2500. That is, 100 grams of bagged grain of phosphorus can be mixed with 250 kg of raw grain.
When using grain-preserving phosphorus, the grain must be dry (in compliance with safe moisture standards). And the grain is free of insects or basically free of insects.
3. Insecticides Phosphorus and Phosphorus Phosphorus is the internationally preferred grain protectant. Its chemical name is methylpyrimidine (sulfur) phosphorus. The usual dose for controlling stored grain pests is generally 5ppm.
4. Cereal net (cereal protectant)
The worm is a compound botanical insecticide with 4-6 kinds of Chinese herbal medicines as the main raw material and a small amount of chemical agent mixed. It has strong repellent, repellent and contact effects on pests. It has the aromatic scent of Chinese herbal medicine. The insecticidal effect is remarkable. The ratio of the net dose of worms to the original grain is 1:2500, that is, the bagged powder of 200 grams per bag can be mixed with the original grain of 400-500 kg.
5. Aluminum phosphide (fumigant)
The commonly used food for farmers is aluminum phosphide tablets, about 3 grams per piece. The dosage is generally calculated as 1-2 tablets (3-6 grams) per cubic meter. Usually 5 tablets per ton (1000 kg) of grain. When applying the medicine, put the tablets into a small cloth bag (one piece per bag). The cloth bag is tightly tied with the rope and evenly buried in the grain pile to let the phosphine release slowly. Seal immediately after application (pay special attention to the seal around the bottom). To ensure the effect. After fumigation for 5-6 days, it should be ventilated for 3-5 days, and take out the bag, choose to stay away from the water source, and dig deep in the soil.
The above medicines are only used as raw grain and seed storage, and the finished flour and rice are not used.
Huaxian County
Main styles of Screw spike for different market
* North America-High strength screw spikes
1.Description:High strength screw spikes
2. Size: 1x5-1/8", 1x6", 1x7"
3. Specification: high strength, AREMA 2012
4. Finish: Waxed
5.Reference project
NYCT 2.5 million pcs since 2012
* North America-Normal strength AREMA 2012 or ASTM A66
1.Description:Screw spikes
2. Size: 15/16x6"
3. Specification: Normal strength AREMA 2012 or ASTM A66
4. Finish: Plain finished
5. Packing in 50lb plastic keg
6. Reference project
Supplied 3 million pcs since 2010 to North America
* North America-CS screw spike
1.Description:CS screw spike
2. Size: 15/16"x6-1/2"
3. Material to property:
-Tensile strength 120000 PSI
4. Finish: Hot waxed
5. Reference project
Supplied more than 1 million to North America since 2017
* South America
1.Description:Screw spikes
2.Size: 23x105mm/23X110mm
3.Material: 4.6 to UIC864-1
4.Finish: Plain finished
5.Reference project
Supplied 2 million pcs to South America
* South America-No.2 Screw spike
1.Description: No.2 Screw spike
2. Size: 24x145
3. Material to property:
-Grade 4.6 to UIC864-1 or AISI 1020 steel
4. Finish: Plain oiled.
5.Reference project
Supplied about 2 million pcs to South America since 2006
* Rurope
1.Description: BS Screw spikes
2. Size: 1"x6-5/16", 1"X5-1/8",1"X6-1/8", 1"X6-3/8"
3. Material to property:
-Tensile strength 775-925 N/mm2
-Elongation 20%
-Impact strength KCU≥ 65J
4. Finish: Hot dip galvanized, Black
5.Reference project
Supplied more than 1 million to London Underground since 2008
* Ss & DHS for fastening system
1.Description: DHS35 screw spike
2. Size: 24x161
3. Material to property:
-Grade 5.6 to UIC864-1
4. Finish: Hot dip galvanized, or zinc plated according to requirements of customer.
5.Reference project
Supplied about 1 million pcs to Saudi Arabia since 2014 for SKL14 fastening
1.Description: Ss Sleeper screw including Ss8, Ss25,Ss35,Ss36
2. Size: 24x160 (length 150mm is available), 24X161
3. Material to property:
-Grade 4.6, 5.6 and 8.8 to UIC864-1
4. Finish: Plain oiled, hot dip galvanized, zinc plated.
5. Supply reference
Supplied about 2 million to Kazakhstan since 2009 for SKL14 fastening system
Styles of Track Spike
* To North/South American market
This rail spike is manufactured according to ARMEA specifications or customers' requirements.
Size: 3/4", 1/2", 5/8"
Length: 3", 3-1/2", 4-1/2", 5", 5-1/2", 6",etc
Material: Q235, 35#, Q355, etc.
Surface: Plain,etc
* Material to Grade 5.6 or at customers' requirement, mainly supply to Eurpo
Size: 12X12X115mm,etc
Surface: Plain,etc
*To GOST 5812-82
Standard: GOST 5812-82, stand a tensile strength of 49KN(5ton force)
Size:16X16X165/205/230/280mm, etc
Surface: Plain,etc
*Main supply to Sweden
Size:16X16X170mm, etc
Surface: Plain,etc
* Boat spike
Size:3/8X3/8X6"/8"/10", 1/2X1/2X10"/12"
Material: Q235,etc
Surface:Plain, black, Galvanized, etc.
Sleeper Spike,Washer Head Screw Spike,Square Head Screw Spike,Special Head Screw Spike
TAICANG ZHONGBO RAILWAY FASTENING CO., LTD. , https://www.railfastener.com