1.Material:ZG200-400 2.class certificate:BV,KR,GL,ABS,NK,RITA 3.Ultrasonic test: ... so on.Surface treatment and other requirement from customer.Standard&certificate:ASTM,BS,NF,DIN,JIS and so on; ISO 9001 ... performance and potential defects. Simulations of mold filling and solidification analysis help us "see" issues before a part is ever ... smooth surface. rudder horn by KSC42 with NK cclass certificate