?????27SiMn??/???/?????27SiMn?? ????????(0635-8883900 13963516033)???????????????? ??????27SiMn??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????27SiMn???????73-?426?????????? ??????????:20#?35#?45#?20Cr?40Cr?Q345B?16Mn-50mn?20CrMo?35CrMo?42CrMo?20CrMnTi ?30CrMnSiA?40CrNiMo ???????:10#?20#?16Mn?Q345B ?????????:20G?12CrMoG?12Cr1MoVG?12Cr2MoVG?15CrMoG ???????????:45#?45Mn2?40Cr ?????????:45#?27SiMn ?????????:DZ40?DZ50?DZ60?DZ70?R780 ??????:K55?J55?N801?N80Q?L80?P110 ????????????09CrMoAl?08Cr2A1Mo?07CrCuA1MoTi ?????????09MnD?09MnNiD ?????????:10?16Mn?1Cr5Mo?15CrMo ???L290?L320L?360L?390?L415 ?????:Q195?20#?45# ??????????:201?202?304?304L?316?316L?320?321?309S?310S ?????????:C??T12/P12?T22/P22?P11/T11?T5/P5?st45.8?13CrMo44?10CrMo910 ? ????????20#?Q345B?45????????，???400-2200mmX10-120mm，???????12?，??????????，????????????????????????