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We will define the time of harvest according to the mean diameter of the base plate of the immature bulb. This diameter is between .6 and 1.3 cm (1/4 to 1/2 inch) and this will also define the size that it will go on small, medium or large. In the fields we will cut the root to a ¼ to ½ inch and the end leaving the green onion to a length of 11 inches, it is Transferred That after to the packing shed Were it is washed and packed.
Quality

Our green onions have a thin, with shank at least 5 to 7.5 cm (2-3 inches) in length, they are well formed, uniform in shape, thin necked, turgid, bright in color, well cleaned, and free from decay, insect-injury, mechanical damage, broken or crushed leaves, or dehydrated clipped ends.

Temperature

Green onions held at 0 C (32 F) and 98 to 100% relative humidity will remain fresh and flavorful for up to 4 weeks. Package- icing and perforated polyethylene film liners are used to maintain quality. Storage life of green onions at 10 C (50 F) is 7 to 10 days. Green onions benefit from light mist.

100% cotton shirts



Minimum 500 pcs

FDA Registration: Registration Number: 3016687960. MOQ: 100000. FOB Price: 1 USD Shell-type disposable air-purifying respirator with a minimum level of efficiency of 95%, designed to retain solid oil-free mist and particles(N95).It has elastic textil estraps attached to the body of the respirator, flame resistant, completely ergonomic, aluminum nose clip with plastic coating, internal cushioning and sponge in the nasal bridge for greater comfort. International Normativity: FDA

FDA Registration: Registration Number: 3016687960. MOQ: 15000. FOB Price: 1 USD Shell-type disposable air-purifying respirator with a minimum level of efficiency of 95%,
designed to retain solid oil-free mist and particles(N95).It has elastic textil estraps attached
to the body of the respirator, flame resistant, completely ergonomic, aluminum nose clip with
plastic coating, internal cushioning and sponge in the nasal bridge for greater comfort.


International Normativity: FDA

DBF temperature-controlled electric hot plate, also known as anti-corrosion electric hot plate, has a Teflon-coated non-stick surface and is not affected by strong acids and alkalis. It is an electric hot plate used for sample heating, digestion, evaporation, boiling and acid removal experiments.
It can be used with our Teflon series such as beakers, crucibles, digestion tubes, sample dissolving tanks, digestion tank inner cups, etc., and the effect is good.
It can meet the reagent heating needs of chemical laboratories in different industries such as physics, chemistry, biology, environmental protection, pharmaceuticals, food, beverages, teaching, and scientific research.
Technical parameters of anti-corrosion electric heating plate
Model: DBF type
Operating area (mm): 600 * 400mm, 400 * 300mm, 500 * 250mm, 450 * 350mm, etc
Heating method: Electric heating PID digital display
Working temperature: 220
Temperature control accuracy: ± 1
Surface anti-corrosion of heating plate: PFA coating
Heating plate material: exquisite aluminum alloy/graphite
Rated voltage: 220V (adjustable according to region)
Continuous working time:>48 hours
Supporting products: Crucible/beaker/PFA vials
characteristic:
1. PFA Teflon coating, anti-corrosion cast aluminum heating plate heats up quickly;
2. The board and the control box can be made into two parts, so that the acid mist during the experiment will not corrode the components in the control box, thereby increasing the service life and processing multiple samples at the same time without cross-contamination;
3. Customizable time setting function and segmented temperature control;
4. The exposed part of the power cord is wrapped with PFA tubes to further prevent acid gas from corroding components;

1. Product Introduction
The graphite digestion system is an instrument used for sample pretreatment in chemical analysis. It is mainly used to dissolve organic and inorganic substances in solid samples into solutions for subsequent analysis and measurement. It heats the sample in a surrounding heating method, effectively increasing the utilization rate of thermal energy. At the same time, it occupies the front end of conventional digestion equipment with its advantages of higher temperature control accuracy, small differences between holes, fast digestion, energy saving and environmental protection. It can adapt to various types of samples, including soil, water, plants, food, etc. Graphite digesters are widely used in environmental monitoring, food safety, geological exploration and other fields. It can process samples quickly and efficiently and provide accurate and reliable analysis results.

2. Graphite digester parameters
Model: BZH-R-XJ
Temperature control range: room temperature-220â??
Temperature control accuracy: �±0.1â??
Heating material: graphite + Teflon anti-corrosion coating
Number of sample holes: 16, 24, 36, 48, 54, 63, 100 (can be customized according to customer requirements)
Control and display mode: PID temperature control digital display
Power supply: 220v/50Hz
Supporting products: PTFE digestion tube, PFA digestion tube

IV. Advantages of our graphite digester
Advantage 1: High temperature resistance, acid and alkali resistance and organic solvent corrosion resistance, good stability;
Advantage 2: Fast sample digestion speed, batch processing of samples;
Advantage 3: Fully enclosed design, while preventing heat loss to a large extent, can also effectively avoid acid mist invasion and damage to equipment components;
Advantage 4: Clean and corrosion-resistant: Using a special spraying process, the coating is uniform, firm, and will not fall off after long-term use;
Advantage 5: Using advanced integrated surround heating method, all parts of the sample are heated evenly, and the digestion is fast and complete;
Advantage 6: Easy to operate, environmentally friendly and energy-saving, saving economic costs;
Advantage 7: PID temperature control system, excellent performance, high temperature control accuracy, up to �±1â??.
Advantage 8: The heating rate can be adjusted to achieve program heating and control the heating holding time, and the heating rate is stable;
We advocate stable, healthy and fast experiments!
Application areas
Environmental monitoring: sewage, drinking water, sludge, mineral mud, sewage, soil, etc.
Food and agricultural product inspection: milk powder, fish, vegetables, tobacco, plants, fertilizers, non-staple food, etc.
Consumer product quality control: cosmetics, industrial products, etc.
Scientific research: experimental analysis, project development, etc.
Disease prevention and control: biological samples, human hair, etc.