State StandardGB/T3091-2001, Enterprise Standard Q/BSDS 30-2001(idt BS1387: 1985), British Standard BS1387 and American Standard ASTM A53 are strictly followed. By applying the advanced high frequency welding technique, the sophisticated devices if.....
查看所有供求信息(2) HEBEI SUNPO METAL PRODUCTS CO., LTD
[中国]