... plane vertical height must be above 50mm 1,circular forging 1,min OD around 400mm 2,weight ... from customers and products qualification rate over 99%.(5),we were certificated to ISO9001:2000 and ... usualy use material of steel type of 15#,20#,25#,30#.35#,40#,45#,46#,etc.according to customers' different ... with rough machining range from 50kg to 5t.(10),according to practical situation and customers' clear ...