I?????????? ????v????????? ???????ù???? Ш???????? ???????? ???????п???????????? ???????????????????? ???????? ?????????? ????????????? ??????v???????????? ???????? ????v?????????? ??????? ????? ????? ??????? ???????? ??
II?? ?????????? ?????Q195??Q235??????????п????? ????1?磬2?磬3?磬4?磬6?磬8?磬10?磬12??......40????(20mm-1000mm) ?????0.1mm---35mm ?????0.05mm ????????50mm-6000mm ??????????????????????????????????? ????????????? ???????????????????????Σ? ?????1.5??2.0mm, 1.5??2.5mm, 1.8??2.5mm, 1.8??3.7mm,2??3mm, 2.2??3.0mm, 2.3??3.5mm, 2.5??4mm, 3.0*4.6mm, 3.0*5.0mm, 3.2??6mm??4??6mm?? ???????2??3.8mm/48????3.8mm/22????3.8mm/32????3.8mm/48????3.8mm/50??, 5.0mm/?? ????????????????磺?????????????? III????? 1.?????????????.Ш??????е????????? 1.3??1.6??1.8??2.0??2.2??2.5??3.0??????????????????Σ?????????????С????????????????????????????? 2.????????Ш?Σ????Σ? ????Σ???????????????????????????ж?????? IV?????????? 1.???????????????????е????????????????????????? 2.??????????н???????????????????????????????????? 3.???????????????????????????????????????????????????????棬?????????????????ж?????????????л????????????? |