铜焊, 铝焊, 各种五金产品等.Copper welding, aluminum welding, all kinds of hardware products.刀头的刀柄和刀头分开使用铜焊焊接, 容易更换刀头.Blades and segments are welded by braze, which facilitate change of segment.将铜焊线或铜焊条按在插入阀门承插口的管道线上.Apply brazing w...
Sometimes things have to fall apart to make way for better things.有时候要到达谷底，才会慢慢变好。Don't think it hasn't torn me apart to be away from you.不骗你，离开你让我痛苦万分。Many school buildings are unsafe, and some are falling apa...