发布时间:2025-01-22 22:00:14
不用加墨,直接换色带架。用钥匙拧开,里面有色带架。在色带架的前面两侧,有卡扣,向外扣下,就可以拿出来,换新的同理。
钢铁深埋地下会不会锈蚀腐深埋地下的建筑钢桩在地下设保护层会不会生锈烂掉
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