?????? QBe1.9?????? ????NGK???? ???????? ????
??????????????????????
????????????????????????NGK?????????????????????塢??????
??????????????
C17200 / C17300 / C17000C17500 / C17510 /QBe2.0/QBe1.9/QBe1.7/QBe1.8
????????0.05mm2.0mm????200mm
???壺??1.0mm300mm
??????1.0mm160mm??1000??2000
??????4.0mm200mm??1000????????
????C17200??????
??Be:1.90-2.15
??Co:0.35-0.65
??Ni:0.20-0.25
Cu:????
??Si:<0.15
??Fe:<0.15
??Al:<0.15
??:AISI C17200
???飺????Ч????????к?????????????????????С???????????????????????????м????????岻???????????????????????????????