COMPANY INTRODUCE

COMPANY INTRODUCE

China Hongyang Group, is an integrated enterprise with the research & development, production and marketing of Fuel Dispenser and related accessories as well as service station concerning equipments. It concentrates on the relative manufacture & services of filling station such as Hongyang tax control Fuel dispenser, IC Card fuel dispenser, manage system of network for stations, submerge pump and liquid level devise. China Hongyang Group, designed supplier of SinoPec and PetrolChina, our HONGYANG products have been sold to over 50 countries in South-east Asia, Mid-east, Africa, Europe and well received in their markets.

spenser because of stable operation, high anti-interference, high accuracy, long service life and wide scope of temperature adaptability, etc. Although clearance exist between piston and bushing, the leakage is very less, even no leakage. If the whole hydraulic system, including measurement transducer, work stably, with small pressure fluctuation, the leakage between piston and bushing too small to calculate when light loan. At present, the accuracy and reliability of metal-piston measurement transducer made by some domestic manufactu fuel dispenser rers are able to compare with that of famous export brand. The leakage change is still little under the various temperatures because of low expansibility of metal piston. Therefore, it is able to keep high accuracy even in wide scope of temperature change, which is outstanding merit. Structure The exploded drawing and structural chart of metal piston measurement transducer are showed in Diagram 2-16 and 2-17. It mainly consists of frame, piston, connecting rod, connecting board, nylon wheel, driving elbow, adjusting device, end cover, etc. 1-Cap nut 2-Gasket 3\3A-Adjusting bolt 4-Nut 5\6-Hexgon screw 7-Spring gasket 8-11-12- End cover 9-Cover gasket 10-Body 13-Bolt 14-Spring washer 15-Flat washer 16-Piston set 17-Spring 18-Flat washer 19-Nylon unit 20-Upper connecting rod 21-Jointing sheet 22-Lower connecting rod 23-24-Piston unit 25~33-Piston adjusting unit 34-Gasket 35-Bolt 36-Screw 3 fuel dispenser 7-43-Pin 38-Jointer 39-Rotation output axis 40-O-ring 41-Brass bushing 42-Driving elbow 44-Seal gasket Diagram 2-16: Exploded drawing of one kind of metal piston measurement transducer Inlet is located down of frame, which is connected with the outlet of vapor separator through pipeline. The middle of frame is oblong chamber connecting to four cylinders. The side of cylinder connects to nearby cylinder. The each upper part of cylinder has an elliptical hole, which is connected to the circle groove of upper frame. Four pistons are installed in cyli fuel dispenser nders, respectively. The two

after long division by q of (a to　　the r).　　 a and q are large prime numbers (128 bits minimum) known to both the controller and　　the COPT. Their exact value is not and does not need to be a secret. r and s are large　　random numbers generated in the controller and the COPT and are kept secret. R and S　　are large numbers and are the intermediate values sent across the communication link　　encrypted under a default DES key. Knowledge of a q R S and even the default　 fuel dispenser 　DES key is not sufficient to discover r s or KD.　　Note that the KD value is different for every COPT in the site because it is based on random　　numbers r and s and is different every time the calculations are performed even if by the　　same COPT. The latter facilitates replacement of a suspected compromised key.　　To break this method requires an iterative approach and boils down to which value of r in　　the calculation mod q(a to the r) produces R . In addition to discovering r a successful　　penetration would also have to discover s .　　The KD is then manipulated by the Function f() to produce a DES key which we term the　　Key Exchange Key (KEK). The KEK is used to encrypt and decrypt derivation keys which　　are shipped from the controller to the COPT to be used for DUKPT operation.　　Below are the exchange sequences needed to fuel dispenser initialize the COPT and to send encrypted data　　to the controller.　　Key Exchange Sequence　　 COPT CD　　1. Loads version number into the　　 version_number data field and generate a　　 DMK Default Master Key from it. This　　 version_number is read-only.　　2. Read version_number from COPT and　　 generate the DMK Default Maste fuel dispenser

t is not just IT and BPO firms, however, that grumble about the public education system. The shortage of suitable people worries manufacturers, too. © 2006 .  About sponsorship Few hands make work light Jun 1st 2006 From The Economist print edition Indian manufacturing is booming, but it won t create huge numbers of jobs “WHETHER India will be a leading player in the coming century will depend to a large extent on how fast we increase the scope of our indu fuel dispenser strial activities and sell quality goods abroad,�wrote the late S.L. Kirloskar, a leading industrialist. “Charity never gave anyone self-respect. Jobs do. And industry alone can create them on a mass scale.� Alamy Fertile ground for recruitment Even many of those full of admiration for India s modern services industries would concur. The entire IT BPO industry in India employs only about 1.3m people, out of a workforce of more than 400m. On the NASSCOM- McKinsey projections, this will increase to 2.3m working on exports alone by 2010. But even allowing for the number of “indirect�jobs each directly employed person creates (in shops, transport, household services and so on), this is still a drop in the ocean. No other country in Asia, not even high-flying service fuel dispenser hubs such as Hong Kong and Singapore, has climbed out of poverty or lower-middle-income status without a manufacturing boom. Boston Consulting Group has pointed out that, despite manufacturing s low profile in India, it contributes a much higher share of GDP (16%) than IT does; it is the source of 53% of exports (compared with 27% from services); and it is the destination for four-fifths of foreign investment. Mr Kirloskar would be justifiably proud of the firm now run by his grandson Atul, with its headquarters in Pune, a centre of Indian manufa fuel dispenser cturing. Kirlosk