按合金组份配制的原料用氧化铝坩埚在真空中频感应炉中熔键成方坯条，再轧制成丝坯，最后拉制成钎焊丝材。
The Starting material is melted and poured into the quadrate billets, then rolled out in wire rods, finally drawn into brazing wire.
该系列锁提供各类无键门禁，包括密码，感应器或带有单个或多个密码选择的双证门禁。
Locks in the series offer many kinds of keyless access control, including PIN, proximity, or dual-credential access with the option of single or multiple access codes.
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