... phosphate ester and are designed for high-pressure dynamic applications such as hydraulic cylinders. Hydraulic seals usually need to be higher ... of our role to be productive, cost-effective and quality oriented for our clients. 2) We will continuously practice ... HTC5, HTC9, TCL, SCY, SCJY, VSB, SB2, HTBW, HSC Hydraulic pump high pressure appropriative seal:TCN,TCV Metallurgy appropriative seal: SB, MOY ...