| Yong Chiang Piston Co., Ltd. |
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 | Manufacturer of pistons liner kits, valves for cars, tractors, agricultural machines, snowmobiles extends into North, Central & South America, Europe, Japan, New Zealand, Australia and Africa since 1989. Type of engine parts includes piston rings, liners, gaskets and engine valves, etc. |
| De Lion Co., Ltd. |
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 | Manufacturer of hydraulic seals, oil seals & oil rings for excavators, breaker parts, cylinder packing kits, bulldozers, folklifts, trucks and crane carriers exported worldwide. |
| Chain Yeeh Industrial Co., Ltd. |
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 | Manufacturer of oil seals, car oil seals, rubber O rings, silicone o-rings, Teflon o-ring and custom-made o-ring. The main markets are in North America, Europe, Asian and other areas. Acquired ISO 9002 in 1999 and ISO 9001 in 2002. |
| Zhong-Gang Auto Accessories Co., Ltd. |
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 | Manufacturer of automotive/ diesel truck/ heavy-duty machine parts, including fuel/ exhaust/ transmission system, chassises, front& rear axles, suspension, brakes, and more. |
| Cob-Web Industrial Corp. |
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 | Manufacturer of vehicles parts including automatic transmission parts, transmission filters, filter service kits, oil pan gaskets, brake bands, engine oil filters, clutch friction plates, clutch steel plates, plastic thrust washers exporting to American and Europe. |
| Poli-Auto Group. |
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 | Manufacturer of car spare parts and piston ring of power, install, engine; engine gasket sets, engine gasket kits, valve seals, fuel pumps, cylinder liner sleeves, valve system, valve stem seal, etc. Acquired ISO9002 in 1998 and QS 9000 certification in 2002. |
| Sheng-E Enterprise Development Co.,Ltd |
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 | Founded in 1980, manufacturer specializes in producing pistons, cylinders, crank shafts, valve rocker arms, gaskets, transmissions, and oil seals. |
| Tong Hong Automobile Parts Co., Ltd. |
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 | Automobile manufacturers' OEM company established in1969, producing engine gaskets, oil seals, rubber parts, and other automobile parts. ISO 9002 & QS9000 certified. |
| Hassan Motor Corporation |
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 | Manufacturer of auto parts, including engine parts, suspension parts, air conditioning parts, auto body parts and electric parts. |
| Tgi-Teamwork Industrial Co., Ltd. |
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 | Manufacturer and exporter of auto engine parts since 1995 and serves a wide range of products, including engine gaskets, brake parts, oil seal, o-rings, poistons, cylinder liners, valve stem seals, and filters for heavy commericial vehicles, tractors, and stationary diesel engines, etc. The major markets are Europe, Latin America, and the Middle East & Southeast Asia. |
| Seagull Sealring Co., Ltd. |
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 | Manufacturer of rubber parts for automotive spare parts, including rubber seals, oil seals, valve stem seals, rocker cover gaskets, oil pan gaskets, engine gaskets, o ring kits, liner o rings, bonded seals, ring seals, washers. |
