现货 L303银基焊条 Ag45银焊条 BAg-5银焊丝 焊接铜合金不锈钢等

L302

Wire & rod
丝

745-775

Ag25 Cu40
Zn Rem.

Brazing of copper, copper alloys, steel and stainless steel etc.
钎焊铜及铜合金、钢及不锈钢等