1:1 Mold Development

1:1mold development exact size

ZL111 Aluminium Material

ZL111 Aluminum material, hardness higher than 110HB.Close to the original surface treatment.

Accurate And Efficient

CNC machine tools to ensure the accuracy and efficiency of the products, especially the threads.

Electrophoresis Process

For iron products, we will use electrophoresis technology to achieve the effect of no rust and a smooth surface.

Piston Hard Anodized

The pistons are all hard anodized, have high precision, and good wear resistance, and are not easy to rust.

Honing Multiple Times

At least 2 times honing processes, more smooth, no corners.

In addition to excellent general characteristics including heat resistance, weather resistance, ozone resistance, chemical resistance, and electrical properties.
These grades of EP also offer a faster vulcanization rate, and lower compression set, and stronger resistance to flex cracking than general-purpose EP.JSR EP grades are suited to application in functional parts such as packing or diaphragms.
EP331 and EP342,in particular. Offer the best compression set and cold resistance among any of SR EPgrades through the use of array operations with ethylene and propylene. Many of JSR grades have a low Mooney viscosity (M),and JSR EP lineup offers an excellent balance of both product properties and processability.

The Rubber Piston Cup user EPDM as the raw material labeled EP-35, all imported from

Japan, all are imported to bring better sealing performance and oil return characteristics.

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Since 1995,TAIZHOU SHUANGYI AUTO PARTS CO.,LTD FOUND. We have 5000+㎡ Production office area,60+Professional staff,1 million+production output per year.
We are a professional China factory producing clutch cylinders, brake cylinders, brake calipers, brake proportional valves, hydraulic clutch bearings, water pump brackets, etc.
Based on an independent testing laboratory and large stock, our factory sales cover 100+ countries and have 200+ partners.
We provide excellent auto parts with international standards and receiving sample processing, packaging design. Professional auto parts, what you need, we make!