国产三线在线,亚洲久草在线视频,9久re热视频在线精品,久久久xxx

IMPA850455銅焊條,FILLER METAL COATED BRASS_BRAZING 5.0X1000MM 5KG,This is a machine coated,  wire drawn brass rod, made from special elements.  These coated filler rods have the advantages of low flaming, fine deposits, increased tensile strength, easy and speedy operations.