1：高价收购IC各种品牌芯片：内存IC，通信IC，手机IC，BGA芯片，裸片IC，单片机IC，电脑IC，蓝牙IC，南北桥，显卡芯片，IC，摄.像头IC，家电IC，汽车IC，IC等等IC。（长期高价收购ALTER，MAXIM美信，TEXAS INSTRUMENTS德州，ATMEL爱特梅尔，FREESCALE飞思卡尔，NS国半，ADI，BROADCOM博通，XILINX赛灵思，MICRON,镁光，NVIDIA，SII精工，TOSHINA东芝，RENESAS瑞萨，NXP，ST，INFINEON英飞凌，SAMSUNG三星，HNNIX现代，INBOND，SPANSION飞索，CYPRESS,REALTEK，HITTITE，MICROCHIP，SUNPLUS，LATTICE，INTERSIL，ON，FAIRCHILD，海思，展讯，昂宝，等等品牌IC芯片电子料。）深圳收购GPU上门收购
2：回收内存芯片长期收购内存芯片，内存颗粒，内存条，FLASH芯片，闪存，显存，CF卡，SD卡，TF卡，MP3/MP4/MP5拆机FLASH，SSD固态硬盘，等等内存物料。（高价回收SAMSUNG三星内存芯片，HNNIX现代内存芯片，TOSHIBA东芝内存芯片，MICRON镁光内存芯片，INTEL英特内存芯片，SPANSION飞索内存芯片，尔必达内存芯片，INBOND华邦内存芯片等等品牌内存。）
3：回收三极管长期收购三极管，贴片三极管，可控硅，场效应管，MOS管等等物料。(FAIRCHILD仙童，TOSHIBA东芝，ON，ST，INFINEON英飞凌，NS国半，长电，IR等等品牌三极管。)深圳收购GPU上门收购
4：回收IG模块长期收购IG模块（富士，三菱，INFINEON英飞凌，西门康等等品牌IG模块。回收继电器长期收购继电器（欧姆龙，宏发，，泰科等等品牌继电器。
5：回收电容、电感、电阻、磁珠、晶振、滤波器长期回收电容，电感，电阻，磁珠，钽电容，电容，贴片电容，穿心电容等等。（村田，三星，安华高科，TDK电感，三和，X钽电容，KEMET基美钽电容，黑金刚，红宝石，三洋，等等品牌物料）
长期回收以下型号：
UMT1N(罗姆)
UMT1N（长电SOT-363）
UMT1NFHA(罗姆)
UMT2907A(罗姆)
UMT2N（长电SOT-363）
UMT3904(罗姆)
UMT3906(罗姆)
UMT4401U3(罗姆)
UMT4401U3HZG(罗姆)
UMT4403U3(罗姆)
UMT4403U3HZG(罗姆)
UMV-1050-R16-G
UMV-950-R16-G
UMX18N(罗姆)
UMX18N（长电SOT-363）
UMX1N(罗姆)
UMX1N（长电SOT-363）
UMX1NFHA(罗姆)
UMX2N（长电SOT-363）
UMX3N（长电SOT-363）
UMY1N(罗姆)
UMY1N（长电SOT-353）
UMZ-104-A16-G
UMZ-106-A16-G
UMZ-1154-D16-G
UMZ12NUM(罗姆)
UMZ16NUM(罗姆)
UMZ18NUM(罗姆)
UMZ1N(罗姆)
UMZ1N（长电SOT-363）
UMZ1NFHA(罗姆)
UMZ1NT1G
UMZ27NUM(罗姆)
UMZ2N（长电SOT-363）
UMZ30NUM(罗姆)
UMZ36NUM(罗姆)
UMZ-442-A16-G
UMZ5.1NUM(罗姆)
UMZ-533-D16-G
UMZ6.8NUM(罗姆)
UMZ8.2NUM(罗姆)
UMZ-867-D16-G
UMZ-868-D16-G
UNAT-1+
UNAT-10+
UNAT-12+
UNAT-15+
UNAT-2+
UNAT-20+
UNAT-3+
UNAT-30+
UNAT-4+
UNAT-5+
UNAT-6+
UNAT-7+
UNAT-8+
UNAT-9+
UNMP-5075 +
UNMP-5075-33 +
UNMP-5075-33R +
UNMP-R5075-33 +
UP025B101K-A-BZ
UP025B102K-A-BZ
UP025B103K-A-BZ
UP025B104K-A-BZ
UP025B121K-A-BZ
UP025B151K-A-BZ
UP025B152K-A-BZ
UP025B181K-A-BZ
UP025B221K-A-BZ
UP025B222K-A-BZ
UP025B223K-A-BZ
UP025B271K-A-BZ
UP025B331K-A-BZ
UP025B332K-A-BZ
UP025B333K-A-BZ
UP025B391K-A-BZ
UP025B471K-A-BZ
UP025B472K-A-BZ
UP025B473K-A-BZ
UP025B5105K-A-BZ
UP025B561K-A-BZ
UP025B681K-A-BZ
UP025B682K-A-BZ
UP025B683K-A-BZ
UP025B821K-A-BZ
UP025CH010D-A-BZ
UP025CH100J-A-BZ
UP025CH101J-A-BZ
UP025CH102J-A-BZ
UP025CH120J-A-BZ
UP025CH150J-A-BZ
UP025CH151J-A-BZ
UP025CH180J-A-BZ
UP025CH1R2D-A-BZ
UP025CH1R5D-A-BZ
UP025CH1R8D-A-BZ
UP025CH220J-A-BZ
UP025CH221J-A-BZ
UP025CH270J-A-BZ
UP025CH2R2D-A-BZ
UP025CH2R7D-A-BZ
UP025CH330J-A-BZ
UP025CH331J-A-BZ
UP025CH390J-A-BZ
UP025CH3R3D-A-BZ
UP025CH3R9D-A-BZ
UP025CH470J-A-BZ
UP025CH471J-A-BZ
UP025CH4R7D-A-BZ
UP025CH560J-A-BZ
UP025CH5R6K-A-BZ
UP025CH680J-A-BZ
UP025CH681J-A-BZ
UP025CH6R8K-A-BZ
UP025CH820J-A-BZ
UP025CH8R2K-A-BZ
UP025F103Z-A-BZ
UP025F104Z-A-BZ
UP025F223Z-A-BZ
UP025F473Z-A-BZ
UP050B103K-A-BZ
UP050B104K-A-BZ
UP050B153K-A-BZ
UP050B222K-A-BZ
UP050B223K-A-BZ
UP050B224K-A-BZ
UP050B332K-A-BZ
UP050B333K-A-BZ
UP050B472K-A-BZ
UP050B473K-A-BZ
UP050B474K-A-BZ
UP050B682K-A-BZ
UP050B683K-A-BZ
UP050CH101J-A-BZ
UP050CH102J-A-BZ
UP050CH151J-A-BZ
UP050CH220J-A-BZ
UP050CH221J-A-BZ
UP050CH270J-A-BZ
UP050CH330J-A-BZ
UP050CH331J-A-BZ
UP050CH390J-A-BZ
UP050CH470J-A-BZ
UP050CH471J-A-BZ
UP050CH680J-A-BZ
UP050CH681J-A-BZ
UP050F103Z-A-BZ
UP050F104Z-A-BZ
UP050F223Z-A-BZ
UP050F224Z-A-BZ
UP050F473Z-A-BZ
UP050F474Z-A-BZ
UP075B105K-A-B
UP075B5225K-A-B
UP665400-02-R
UP9512PQGJ
UPA1763G
UPA1803GR
UPA1804GR
UPA1809GR
UPA1814GR
UPA1815GR
UPA1855GR
UPA1856GR
UPA1857GR
UPA1873GR
UPA1890GR
UPA1901TE
UPA1911ATE
UPA1912TE
UPA1913TE
UPA1914TE
UPA1915TE
UPA1916TE
UPA1917TE
UPA1918TE
UPA1919TE
UPA1930TE
UPA1931TE
UPA1932TE
UPA1950TE
UPA1951TE
UPA1952TE
UPA1970TE
UPA2350T1P
UPA2351T1P
UPA2352T1P
UPA2600T1R
UPA2601T1R
UPA2630T1R
UPA2631T1R
UPA2660T1R
UPA2670T1R
UPA2672T1R
UPA2690T1R
UPA2706GR
UPA2720AGR
UPA2721GR
变频器可以对电动机进行多档转速驱动，在进行多档转速控制时，需要对变频器有关参数进行设置，然后再操作相应的端子外接开关。变频器的RRM、RL为多档转速控制端子，RH为高速档，RM为中速档，RL为低速档，RRM、RL3个端子组合，可以进行7档转速控制，如下图所示：多档速控制说明当开关SA1闭合时，RH端与SD端接通，相当于给RH端输入高速运转指令信号，变频器马上输出频率很高的电源去驱动电动机，电动机迅速启动并高速运转。