发布时间:2025-01-31 16:37:04
瓷白的玻璃胶用得时间久了,一般都会发黄,若用纯白色的玻璃胶的话,效果会好一点的。
可把原来的玻璃胶用美工刀片割除,然后重新打上白色的玻璃胶。
制造跨度12米载重两吨的横梁用多大的工字钢工字钢上面用焊花架吗
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