波峰焊接常见的预热方法

　　BOFENGHANYUREDEZUOYONGSHI：

穷人赚钱门路 　　a. JIANGHANJIZHONGDERONGJIHUIFADIAO，ZHEIYANGNENGGOUJIANSHAOHANJIESHICHANSHENGQITI;

　　b. HANJIZHONGSONGXIANGHEHUOXINGJIKAISHIFENJIEHEHUOXINGHUA，NENGGOUQUCHUYINZHIBANHANPAN、YUANQIJIANDUANTOUHEYINJIAOWAIBIAODEYANGHUAMOYIJIQITAWURANWU，TONGSHIQIDAOWEIHUJINSHUWAIBIAOFANGZHIFASHENGZAIYANGHUADEZUOYONG;

　　c. SHIYINZHIBANHEYUANQIJIANCHONGPEIYURE，BIMIANHANJIESHIJIJUSHENGWENCHANSHENGREYINGLISUNHUAIYINZHIBANHEYUANQIJIAN。BOFENGHANDEYUREBANFAYOUXIAMIANSANZHONG

穷人赚钱门路 　　1﹐KONGQIDUILIUJIARE

穷人赚钱门路 　　2﹐HONGWAIJIAREQIJIARE

　　3﹐REKONGQIHEFUSHEXIANGJIEHEDEBANFAJIARE