Specification :

We are now seeking a potential Chinese supply source of the hereinafter citing lines of chemicals known as Ch-3 and Ch-3  based on:
· Term of delivery: EXW Chinese plant (delivery at Chinese works)
· Delivery volume: 1.5 – 6 tons per shipment
· Supplying sequence: One lot per month
· Packing: International standards
· Delivery tolerance: +/- 5% acceptable in volume of each item and total amount
· Payment: By TTr and/or L/C at sight in USD
Main technical specifications for  Ch-3,  Ch-3 
Products Ch-3, Ch-3 are a granular product in which composition there are potassium superoxide, calcium oxide.
Products are made in two variants Ch-3 and Ch-3; they differ in fraction composition , strength, protective action period.
Products Ch-3, Ch-3 are packed into metal, tight containers or 200 m3 cans .
They are applied for air regeneration in mine insulating self-ignition devices and other respiratory devices of insulating type, intended for protection respiratory organs against any harmful impurities, as a component for oxygen formation.
While in service technological process of regenerative products manufacture has been reconstructed; it allows to maintain high quality.
Specification
Value (norm)
Ch-3
Ch-3
Fraction of total mass of active oxygen, no less than, %
25.5
25.5
Strength of the fraction with the size of grains from 3,5 to 5 mm of the product Ch-3, no less than %
90
-
Strength of the fraction with the size of grains from 2,0 to 3,5 mm of the product Ch-3, no less than , %
-
80
Combustible impurities
None
Period of protective action of a layer of product Ch-3 in a constant stream till volume fraction of carbon dioxide is 0,2 % in coming off air-gas mixture , no less than, min.
25
-
Period of protective action of a layer of products in a constant stream till volume fraction of carbon dioxide is 1,4 % or volume fraction of oxygen is 23,5%
25
50
And our stressed points are:
1. Period of protective action of a layer of product Ch-3 in a constant stream till volume fraction of carbon dioxide is 0,2 % in coming off air-gas mixture, no less than, min. 50 -
2. Period of protective action of a layer of products in a constant stream till volume fraction of carbon dioxide not greater than 2,8 % or volume fraction of oxygen is 23,5% must be greater than or equal to 50 minutes.
We do hope you would capable produce and supply with the above mentioned lines at the most competitive price in delivery terms (5-6 tons per month) and receive your soonest feedback quotation with best pricing terms as they could. And if could, pls. send us approx. 10 kgs free by air at our address as soon as possible.
Looking forward to the mutual prosperous business cooperation with you in the nearest future, we remain.
Best Regards,
Yours faithfully,
Mr. Nguyen Ngoc Chien - General Director