We us 4340 forged steel to produce H Beam connecing rod for Porsche cars. Con rod length:127mm-150mm 30 year experiences on Engine Parts manufacturing.Main market: USA, EURO, domestic JAC We us 4340 forged steel to produce H Beam connecing rod for Porsche cars. Con rod length:127mm-150mm 30 year experiences on Engine Parts manufacturing.Main market: USA, EURO, domestic JAC