1. alloy steel 35CrMo or 45# steel.
2. JB/T252-81 standards.
3.including suction and discharge.

modules are forged using alloy steel 35CrMo or 40CrMnMo. The forging rate is not less than 40:10 and has no crack and impurities.

The products entirely meet the JB/T252-81 standards, and check-up  them according to III grade forging.

The processing of modules is examined strictly and passes the lossless inspection.