1,Every pcs was tested at 10kgs/cm2. 2,Sleeve with oval shape and black color. 3,The life time is more than 1000 times.

1,4 ports plastic pneumatic fittig.

2, Sleeve with oval shape and black color.

3, Each and every pcs was tested at 10kgs/cm2.

4,Chipware is zinc.

5, Inner seal can bear 75 degree.

6, The snap spring is stainless steel with heat treatment and the life time is more than 1000 times.

4 ports plastic pneumatic air fittings