A part of the member units of this union passed the authentication of ISO9002 Quality Assurance system examined by Demo Company of UK in April, 1998 and passed the annual supervision examination in September, 1999. The union has been making effective operation in accordance with the elements required by the system.

1、 Control over raw material purchase: This union strictly selects, through screening, the raw material manufacturers, and makes quality management and the investigation of technical capacity, production capacity and credit status over them, to definitely ensure the sub-suppliers have such capacity as required by this company. Only after being found up to standard through 2-3 times of trial supply, can the manufacturers be brought into the rank of acceptable sub-suppliers. Any batch of material newly supplied should be subjected to experiment in small batches before use and, only when proved acceptable, can it be brought into use in batch process, to definitely ensure the raw materials used are in conformity with the specified standards.

2、 Production process control: After the acceptable raw materials having been brought into production, inspection and monitoring are made over various operations of material burdening, smelting, powder making, shaping, grinding slice cutting and electroplating in the process of manufacture, to definitely ensure the unfinished products are transmitted to the next operation in acceptable state.

3、 Control over product identification and inspection status: In the process of manufacture, make explicit and careful identification, regional placement and fixed-position management of the unfinished products in the status of various operations and links, to definitely ensure the products have explicit identifications in all the stages from the coming of raw materials to manufacture process until delivery of products and to realize the requirements for traceability of various links and various stages.

4、 Unacceptable product control: Make explicit identification and isolated keeping of the unacceptable semi-finished products and finished products found in the whole manufacturing process, to prevent the products not in accordance with the specified requirements from being used and dispatched due to negligence and to have them le-worked, degraded or otherwise deposed, depending on the degree of unacceptability. The or-worked unacceptable products are then subjected to the same stipulated inspections and, only when confirmed to attain the stipulated quality requirements, can they pass.

5、 Control over inspection and test equipment, apparatus and instruments: To make the results of inspections and tests accurate and true, this unit makes control over the inspection and test appliances. All the inspection and test appliances are appraised on the stipulated cycles, to definitely ensure the effectiveness of measured results.

6、 Control over handling, packing and storage: To avoid the damage, confusion and misuse of products in the process of manufacture and finished product dispatch, this company has prepared special handling cars and packing equipment and, after packing, places the products in dry warehouse, and then has them subjected to damage-proof, damp proof and shielding treatments, to ensure no damages or confusions will occur.

7、 Magnetic performance control: To made the magnetic performance of products meet or satisfy the requirements of users, make magnetic performance confirmation on the products in the process of performance fest, by using Type DMT-1 permanent-magnet tester produced by the state Measurement Academy and in accordance with GB/T3217-92 or the requirements stricter than the internal-control standards of GB/T13560-92. After cutting slices, make confirmation and control of their magnetic flux and uniformity by using Type DT-800M flux plate.

8、 External dimension control: To definitely ensure the external dimensions are in conformity with the stipulations, it is required to do the following work: (1) Inspection and test of outside diameter (dimension): make 100%full inspection according to the requirements of users, to ensure the products entering the slice cutting, hole drilling and next operations are all acceptable products. (2) Bore inspection and test after hole drilling: a、Inspection and test of bore dimensions: make 100% full inspection with inside micrometer and inside dial indicator. b、Inspection and test of concentricity: Make 100% full inspection of concentricity with tooling made of dial indicator. (3) Inspection and test of cut slices: After slice cutting, make 100% full inspection with thickness sorter, followed by making 10%-20% spot inspection. If any slice is unacceptable, reword immediately.

9、 Control over coat quality: To definitely ensure the coat quality of provided products is acceptable and to definitely ensure the products used by the users play the role of corrosion resistance and rust resistance, make inspection and test of coat bond and salt mist test:

(1) Bond: Engrave a square check of 1sq.mm with force on the coat by using a carbide with an acute angle and then observe and verity whether the coal peels off or trends to peel off.
(2) Salt mist test: At an ambient temperature of 35 degrees, in 5% Nacl solution with a PH value of 6.5-7.2, and at a salt mist oven temperature of 35 degrees.
(3) As required by the users, make inspection and test of other items and control over delivery identification and product verification.

To make various requirements for final products to be delivered attain the requirements of users, verity their performance, dimensions, appearance, packing, identification and shielding before the products are dispatched.

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