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.

As past over long service time, parts abrasion universally or cylinder severely damaged, a new measurement transducer should be installed to replace old one. As find exterior leakage, firstly inspect the bolts corresponding to leak section. Tightly screw loose bolts, if leakage is continued, disconnect and inspect the seal ring and gasket relative section. Substitute aging or damaged parts and reassemble. Apart from the above reasons of extensive colloid and surface abrasion, these trouble also fuel dispenser cause abnormal operation of measurement transducer, such as position pin fall down from piston or deformation, small axis lost on fuel dispenser upper and lower connecting rod, loose bolt between piston and connecting rod. The solution is that disassembling measurement transducer, replace damaged or unqualified components and reassemble. The products mad fuel dispenser e in normal factory seldom appear these troubles. Since measurement transducer is core component of fuel dispenser, elaborate machining, disconnection and reassembly should be as careful as possible. All elements should be cleaned before reassembly, excluding water into inner. Bolts are tightened even and appropriately. Soft-piston measurement transducer As these merits --- small in size, light weight, beautiful appearance, high accuracy, piston exchangeable--- soft-piston measurement transducer is widely adapted in domestic fuel dispenser market. It generally involves two structures: four-piston structure and double-piston structure. The latter model is selected universally. Therefore, this article will introduce the structure, working principal and maintenance of four- piston measurement transducer. Structure Diagram 2-20 and Diagram 2-21 show the cutaway view and exploded drawing of four-piston measurement transducer that is widely employed. The transducer mainly consists of sealed cover, upper subassembly, export axis, frame subassembly, piston subassembly, connecting rod and top cover, clearly presenting in Diagram 2-20 and Diagram 2-21. Diagram 2-20: Cutaway view

od of Key Management.　　B.1.1 DUKPT　　The Visa DUKPT scheme is the preferred method.　　A number of Derivation Keys (DK) will be maintained on the FEP.　　The DK should be double length. All other keys are single length.　　In order to create the Initial PIN Encryption Key (IPEK) in the terminal the Initial Key Serial　　Number (IKSN) must be encrypted with the appropriate DK. The detailed procedure for this　　process must be agreed between implementer and the terminal manufacturer.　　The IPEK fuel dispenser is used to secure the first PIN in transmission. Thereafter the terminal creates the　　Key Serial Number (KSN) from the IKSN whi fuel dispenser ch changes with each transaction. This is used　　with the IPEK to generate the Unique Transaction Key (Current Key). The Current Key is　　used to generate the Current PIN Encryption Key (KPEn) which is used t fuel dispenser o secure the PIN. It　　is also used to generate the Current Mac Key (KMACn).　　The FEP must be able both to predict the value of KSN (in order to validate against　　playbacks) and to generate KPEn (to verify the PIN or to translate it for onward　　transmission).　　The POS will supply the FEP with:　　 BIT 52 encrypted PIN Block - eKPEn(PIN Block)　　 BIT 53 Security Related Data - Security Management Information Data (SMID).　　 Consisting of Key Set Identifier (this indicates to the FEP which DK to use to generate　　 KPEn and KMACn) TRSM (PIN Pad identifier) and the KSN　　See below for the requirements for generating MACs where the POS has Visa DUKPT　　implemented.　　B.3.2 MasterSession Key Management　　In those limited cases where Visa DUKPT cannot be used the following alternative method　　will apply.　　Wednesday 10 May 2006 - Revision 03　　Document title　　IFSF POS to FEP Interface　　Section Page　　Appendix B Security 141178　

be elected, a country requires 128 votes—two-thirds of the General Assembly. Neither Venezuela nor Guatemala is likely to achieve that. Whichever comes second would normally face pressure to step aside. But this time, neither is likely to do so. The onus will then be on the bigger countries in Latin America to come up with a compromise candidate—diplomats mention Uruguay, the Dominican Republic and Costa Rica. Condoleezza Rice, the American Secretary of State, said this week that Venezuela s fuel dispenser election would mean “the end of consensus on the Security Council.�But while it lobbies for Guatemala, the Bush administration fuel dispenser has tried to avoid being drawn into a soundbite war with Venezuela. There is a “surreal�quality to Mr Chávez s rhetorical aggression against the United States, says Thomas Shannon, the State Department s to fuel dispenser p official for Latin America. Venezuela still exports most of its oil to the United States, and the two countries long had close ties. Though Mr Chávez blames the United States for a failed coup against him in 2002, the evidence suggests that the administration merely failed to condemn it. “This is a fight that Chávez has decided to bring to us, we didn t bring it to him,�says Mr Shannon. It is one that Mr Chávez hopes will win him votes, both at the UN and at home. © 2006 .  About sponsorship Mexico Under the volcano Sep 28th 2006 | OAXACA From The Economist print edition The governor v most of the people Notimex They want to send Ulises and his plain-clothes police on their travels NORMALLY the streets of Oaxaca, a city of some 250,000 people in southern Mexico, are full of tourists. They come to enjoy the nearby Zapotec ruins of Monte Albán and the city s colonial churches, Indian markets and art ga