T8*3*4
T8*4*4
T8*6.3*5.6
T8*7*6
T8*7.5*5.3
T8*8*4
T9*3*5
T9.1*4.6*5
T9*4.5*5
T9*8*5
T9.5*5*5
T9.5*9.5*5
T9.8*6.5*6
T10*2*6
T10*3*6
T10*4*6
T10*4*7
T10*5*5
T10*5*6
T10*6*6
T10*5*7
T10*7*6
T10*7*6
T10*7*7
T10*7.5*7
T10*8*6
T10*10*4.2
T10*10*5
T10*10*6
T10*10*7
T10.5*10*7.3
T10*20*4.2
T11*8*5
T12*4*6
T12*5*8
T12*5.3*7.3
T12*5.5*7
T12*6*6
T12*6*7.3
T12*7*8
T12*8*6
T12*8*7
T12*9*5.6
T12*10*3.55
T12*10*7
T12*12*5.6
T12*12*6.5
T12*12*8
T12.5*6.5*5
T12.5*12*8
T12.7*6.35*7.9
T12.7*4.8*7.9
T12.7*9.6*7.9
T12.7*12.7*7.9
T12.7*12.7*11
T13*3*7
T13*6.3*7
T13*6.5*8
T13*7*7
T13*10*8.2
T13*12.7*7.1
T14*4*8
T14*5*8
T14*5*9
T14*5.5*9
T14*14*10
T14.2*5*10
T14.2*5.5*8.7
T14.2*7*8
T14.2*8*9
T14.2*10*8
T14.2*8*10
T14.2*8*10
T14.2*10.16*6.35
T14.2*12*7.8
T14.2*12.7*6.7
T14.2*13*8
T14.2*13.8*6.35
T14.5*8*10
T15*5*10
T15*15*10.5
T15.2*12.5*10.5
T15.6*14*13.4
T15.87*14.3*7.9
T16*4*9
T16*4*10
T16*5*10
T16*5.4*9
T16*7*9
T16*7*10
T16*8*10
T16*8*12
T16*10*7
T16*10*8
T16*10*9
T16*10*10
T16*10*12
T16*12*9.5
T16*12*10
T16*13*8
T16*13*9
T16*14*10
T16*15*9
T16*16*8
T16*16*9
T16*16*10
T17.5*6.35*9.5
T17.5*7*9.6
T17.5*10*8
T17.5*11*9.5
T17.5*12*11.3
T17.5*12.5*12
T17.5*9.5*12.7
T17.5*12.7*9.5
T17.5*12.7*10.7
T17.5*13.5*9.5
T17.5*15*9.5
T18*6*10
T18*7*10
T18*8*10
T18*10*10
T18*12*10
T18*12*12
T18*14*10
T18*15*10
T18*18*10
T18.2*6.4*11.2
T18.2*6.5*10
T18.4*9.6*12.5
T18.2*12.5*9.5
T18.4*14.3*9.5
T19*11*13
T19.5*12.7*9.5
T20*5*10
T20*7*10
T20*8*10
T20*10*10
T20*15*10
T20.8*30*11.6
T21*13*12
T21*12*13.2
T21*6*12.7
T22*8*14
T22.5*6.4*13.8
T22.5*6.4*14.3
T22.5*8*13.8
T22.5*10*13.8
T22.5*9.5*13.5
T22.5*12.7*13.5
T23*10*18
T23.5*9.5*12.7
T24*14*11.4
T25*8*15
T25*10*15
T25*12*15
T25*15*13
T25*15*15
T26*8*16
T26*15*13
T28*7.5*16
T28*8*18
T28*10*16
T28*10*18
T28*13*16
T28*20*16
T28.5*28.5*13.8
T28*28*16
T29*7.7*19
T29*10*19
T29*12*19
T29*13.8*19
T29*15*19
T31*5*19
T31*7*19
T31*8*19
T31*10*19
T31*12*18
T31*12*21
T31*13*19
T31*16*19
T31*18*19
T35*6*20.8
T35*12.6*20.8
T36*10*20
T36*12*25
T36*12.7*25
T36*13*23
T36*20*23
T36*23*15
T40.6*15*27.4
T59.4*12.8*34.8
圆柱形：
RH3.5*4*1.8
RH3.5*4.7*0.8
RH3.5*4.2*1.3
RH3.5*5*0.8
RH3.5*5*1.2
RH3.5*6*0.8
RH3.5*5*1.8
RH3.5*8*0.8
RH3.5*9*0.8
RH3.5*10*0.8
RH3.5*10*1.8
RH3.5*9*1.3
RH4*5*2
RH4*6*2
RH4*7*2
RH4*10*1.5
RH4*10*2
RH4*12*2
RH4*12.5*1.5
RH4.6*11*2
RH5*6*2.4
RH5*9*3
RH5*8*3
RH5.5*8*3
RH5.5*9*3
RH5*10*2.5
RH5*10*3
RH5.1*12.7*2.3
RH5.6*10*3.1
RH5.5*12.7*3
RH6*8*3
RH6*10*3
RH6*10*4
RH6*12.7*3
RH6*10.7*3
RH6*18*3
RH6.35*12.7*3.3
RH6.35*15.3*3.2
RH6.35*15.8*3.3
RH6.5*8*4.5
RH6.5*10*4.3
RH6.5*12.7*4.5
RH6.78*14.2*4
RH6.5*15.6*4
RH7*8*5
RH7*7*4
RH7*10*4.5
RH7.5*8*5.3
RH7.5*20*4
RH7.75*13*4
RH7.8*18*4
RH7.75*19*4
RH7.8*12.7*4
RH7.8*13*4.5
RH7.8*12.7*4.5
RH7.8*14.2*4
RH7.8*14.2*4.5
RH7.8*18*4.5
RH7.8*25*4.5
RH7.9*19*4.5
RH8*9*5
RH8*9.8*6
RH8*10*3.6
RH8*10*5.6
RH8*12*4
RH8*12*5.5
RH8*12.9*5.6
RH8*15*5.6
RH8*20*3.6
RH8*20*5.6
RH8.4*20*4.2
RH9*9.5*5
RH9*10*4.5
RH9*10*4.9
RH9*12*4.5
RH9*12*5
RH9*14.5*5
RH9*16*4.2
RH9*15.3*4.4
RH9*16*5
RH9*16*5.6
RH9*18*5.6
RH9*18.5*5
RH9*20*5.5
RH9*24.5*5
RH9*25*5.6
RH9.5*10*5
RH9.5*10*5.8
RH9.5*10.3*5
RH9.5*10.4*5
RH9.5*11*4.8
RH9.5*12*4.8
RH9.5*12.7*4.75
RH9.5*14.5*5
RH9.5*14.5*6
RH9.5*15*5
RH9.5*16*5
RH9.5*18*4.8
RH9.5*19*5
RH9.5*19.5*5
RH9.5*20*4
RH9.5*20*5
RH9.5*25*4.8
RH9.6*15.5*4.6
RH9.7*10.2*3.8
RH9.75*25*3.8
RH9.8*13.5*3.8
RH9.8*13.5*6.35
RH9.8*13.5*5.6
RH9.8*14*5.6
RH9.8*15.5*4.3
RH9.8*15.7*6.3
RH9.8*17.5*6.35
RH9.8*18*6.5
RH9.8*19.05*6.35
RH10*12*5.5
RH10*14*6
RH10*15.5*6.5
RH10*17*6
RH10*17.5*5
RH10*20*4.3
RH10*20*5
RH10*20*5.5
RH10*20*6
RH10*20*6.35
RH10*23.5*6.5
RH10*25*5.5
RH10.4*10.4*5.8
RH10.3*11.5*5
RH10.5*12*5.5
RH10.5*13.5*6.5
RH10.5*14*6
RH10.5*15*5.6
RH10.5*15*7
RH10.5*14*7.3
RH10.5*20*5.5
RH10.5*20*6
RH10.5*20*6.5
RH10.5*20*7
RH10.5*20*7.3
RH10.5*28.5*5.5
RH10.5*30*6.5
RH11*20*5
RH11*20*7.5
RH11.5*20*5
RH11*25*5
RH11.5*18.5*5
RH11.5*25*5
RH11.5*30*5
RH11.8*15*7.3
RH12*12.5*8.5
RH12*12.7*6
RH12*12.7*6.5
RH12*13*8
RH12*15*5.5
RH12*15.5*5.6
RH12*15*7.3
RH12.1*15.5*7.3
RH12*16.5*6.5
RH12*15*6.5
RH12*15*8
RH12*15*8.5
RH12*17.5*6.5
RH12*19*5.6
RH12*20*3.5
RH12*20*3.6
RH12*20*4
RH12*20*4.5
RH12*20*5
RH12*20*5.6
RH12*20*6
RH12*20*6.5
RH12*20*7
RH12*20*7.3
RH12*20*8.5
RH12*23*3.5
RH12*23*4.5
RH12*23*5.6
RH12*23*6.5
RH12*23*7.9
RH12*24.5*5.6
RH12*25*4
RH12*25*5.6
RH12*25.4*5.2
RH12*25*7.3
RH12*26*7.3
RH12*28.5*5.6
RH12*28.5*6.5
RH12*28.5*8
RH12*29.7*5.6
RH12*30*5
RH12*30*5.6
RH12*33*7.3
RH12.2*27*7.9
RH12.2*28.5*7.9
RH12.3*12.5*5
RH12.5*15*8
RH12.5*20*8
RH12.7*15*7.9
RH12.7*16.7*7
RH12.7*16.5*7.9
RH12.7*18*8
RH12.7*25.4*7.9
RH12.8*15*8.4
RH13*20*5
RH13*28*8
RH14*15*7
RH14*15*9
RH14*15*10
RH14*16*10
RH14*18*10
RH14*22*10
RH14.2*15*5.5
RH14.2*15*6.7
RH14.2*15*7.2
RH14.2*15*8
RH14.2*15*9
RH14.2*18*6.5
RH14.2*20*4.5
RH14.2*20*5.2
RH14.2*20*6.35
RH14.2*20*7.2
RH14.2*22*7.5
RH14.2*23.5*6.7
RH14.2*23*7.5
RH14.2*23.5*8
RH14.2*24*9
RH14*24*9.5
RH14.2*25*7.5
RH14.2*25*8
RH14.2*25.5*9.5
RH14.2*28.5*4.5
RH14.2*28.5*5.5
RH14.2*28.5*6.35
RH14.2*28.5*7
RH14.2*28.5*7.2
RH14.2*28.5*8
RH14.2*28.5*8.3
RH14.2*28.5*9
RH14.2*28.5*9.5
RH14.2*28.5*10
RH14.2*30*8
RH15.5*28.5*7.3
RH15.7*27*9
RH15.88*25.6*7.86
RH16*17*8
RH16*17*9
RH16*17*10
RH16*17.5*4.3
RH16*20*8
RH16*20*9
RH16*25*9
RH16*27*6.35
RH16*28*7
RH16*28*8
RH16*28*9
RH16*28*10
RH16*28*10.7
RH16*28.5*6.35
RH16*28.5*7
RH16*28.5*8
RH16*28.5*9.5
RH16*30*8
RH16*33.3*8.2
RH16.25*50.8*7.9
RH17.07*25.4*8.76
RH17.5*20*10
RH17.5*20*12.5
RH17.5*23*12.7
RH17.5*23.5*10
RH17.5*24*10.5
RH17.5*25*10.7
RH17.5*25.5*8.7
RH17.5*25.5*11.5
RH17.5*26.5*9.5
RH17.5*27*8
RH17.5*27*9.5
RH17.5*28.5*8.3
RH17.5*28.5*9.5
RH17.5*28.5*10
RH17.5*28.5*10.5
RH17.5*28.5*11.3
RH17.5*28.5*11.7
RH17.5*28.5*12
RH17.5*28.5*12.5
RH17.5*35*9.5
RH18*28*10
RH18*29*10
RH18*36.3*9.4
RH18.2*23.5*9.5
RH18.2*25.5*11
RH18.2*28.5*9.5
RH18.4*20.5*12.5
RH18.4*28.5*10.3
RH18.4*28.5*11
RH19*28.5*12.7
RH19*29*12
RH19*29*13
RH19*50.3*10
RH20*30*8
RH20.8*30*11.6
RH21*37*9
RH21*29*15
RH22.5*25*13.5
RH22.5*29*13.8
RH25.9*26.5*12.9
RH26*28*16
RH26*28.5*13
RH25.9*28.5*12.6
RH25.9*29*12.7
RH26*30*13
RH27.5*28.5*13.5
RH28*30*13.5
夹扣型
RC10*20*5-MB
RC12*15*7-MG
RC12*15*7-MB
RC13*23*7-MB
RC14*28.5*7-MB
RC16*13*8-MB
RC16*16*8-MB
RC16*28*8-MB
RC16*28*9-MB
RC16*28*9-MB
RC17.5*28.5*9.5-MB
RC17*28*11-MB
RC20*30*5-MB
RC20*30*13-MB
RC20.5*10*10.2-MB
RC24*14*11.5-MB
RC25*12*15-MB
RC26*30*13-MB
RC35.5*15*23-MB
扁型
FS5*3*3*9-1
FS5*3*3.4*9-1.4
FS5*3*3.4*4-1.4
FS6.5*3.8*4*5.5 - 1.5
FS6.5*3.8*4*9-1.5
FS7.5*5.5*5.3*8 - 3.3
FS7.5*5.5*5.3*11.5-3.3
FS8.5*5*6.2*3.4 - 1.3
FS9.1*5.6*7.2*5 - 3.7
FS9.1*5.6*7.2*7.8-3.7
FS12*4.5*9*12-1.5
FS19*6.5*14*8-1.7
FS19*6.5*14*8-2.0
FS19*6.5*14.5*12-2.5
FS19*6.5*13.5*12-1.8
FS19*6.5*14*12 -1.8
FS23.5*6.5*18.5*12.5-1.5
FS23.5*6.5*18.5*15-1.1
FS23.5*6.5*19.5*15-1.4
FS25*5*21*9.5-1.5
FS25*5*21*12-1.5
FS28*8*21*15-2.0
FS28*7.7*23*12 -2.4
FS28*14*20.5*13 - 7.2
FS29*8*22*10-2.0
FS29*8*22*12-2.4
FS32*6.5*28.5*9.5-2.5
FS32*6.5*27.5*9.5-3.0
FS32*6.5*28*12 -2.5
FS33.5*6.5*27.5*8-1.5
FS33.5*6.5*27.5*10-1.8
FS33.5*6.5*27.5*12-1.8
FS33.5*6.5*27*8 - 1.3
FS33.5*6.5*27*10-1.3
FS33.5*6.5*27*12-1.3
FS33.5*6.5*27*15-1.3
FS38.5*4*35*12 -0.8
FS38.5*4*35*18 -0.8
FS40*6.5*35*12 -1.8
FS40*6.5*35*15 -2.0
FS40*6.5*35*18 -2.0
FS49.6*6.5*44*12-1.3
FS49.6*6.5*44*15-1.3
FS49.6*7*44*12 -1.8
FS50*6.5*44.9*12-1.4
FS57.6*6.5*52*12-1.3
FS58.6*7.5*52*20-1.3
FS60*12*48.5*12.7-2.2
FS60.6*6.5*55.2*12-1.3
穿线磁珠
R6H6*10*0.85-1.5TS
R6H6*10*0.85-2TS
R6H6*10*0.85-2.5TS
R6H6*10*0.85-2*1.5TS
R6H6*10*0.85-3TS
R8H5.2*10*0.85-3.5TS
R8H5.2*10*0.85-4TS
贴片磁珠
产品应用于：手机，电脑，数码相机，汽车导航，玩具等
单片结构、高可靠性、显着的抑制杂讯效果，为EMI、EMC提供完备的解决方案
磁珠于抑制信号线、电源线上的高频噪声和尖峰干扰，还具有吸收静电脉冲的能力。它有很高的电阻率和磁导率，等效于电阻和电感串联，但电阻值和电感值都随频率变化。
功率电感
功率电感在电路中主要起滤波和振荡作用;共模电感/线圈常用于电脑的开关电源中过滤共模的电磁干扰信号，在板卡设计中也起EMI滤波的作用，用于抑制高速信号线产生的电磁波向外辐射发射。
,1812
5D28,4D28,12,0504,0703
产品介绍
良好的可焊性和耐焊性
形状全部统一为自动装配机适用型，无方向性
在宽频段有显着的抑制噪声效果
采用完全单片结构，实现了高可靠性
端子电极已经过电镀，可适用流动焊接，回流焊接任意一种焊接工法
为RoHS指令对应产品
产品应用
手机，PC，笔记本电脑，电视谐调器，STB，音频播放器，DVD，游戏机，数字相框，汽车导航等信号线的抗干扰。车导航等信号线的抗干扰。
产品规格
标准电流：
BEAD0402S100T
BEAD0402S150T
BEAD0402S300T
BEAD0402S400T
BEAD0402S600T
BEAD0402S700T
BEAD0402S900T
BEAD0402S101T
BEAD0402S121T
BEAD0402S221T
BEAD0402S241T
BEAD0402S301T
BEAD0402S401T
BEAD0402S501T
BEAD0402S601T
BEAD0402S801T
BEAD0402S102T
BEAD0603S170T
BEAD0603S190T
BEAD0603S280T
BEAD0603S470T
BEAD0603S500T
BEAD0603S600T
BEAD0603S700T
BEAD0603S800T
BEAD0603S900T
BEAD0603S101T
BEAD0603S121T
BEAD0603S151T
EAD0603S181T
BEAD0603S221T
BEAD0603S241T
BEAD0603S301T
BEAD0603S401T
BEAD0603S421T
BEAD0603S471T
BEAD0603S601T
BEAD0603S701T
BEAD0603S751T
BEAD0603S801T
BEAD0603S102T
BEAD0603S122T
BEAD0805S100T
BEAD0805S170T
BEAD0805S260T
BEAD0805S300T
BEAD0805S600T
BEAD0805S700T
BEAD0805S800T
BEAD0805S900T
BEAD0805S121T
BEAD0805S151T
BEAD0805S201T
BEAD0805S221T
BEAD0805S241T
BEAD0805S301T
BEAD0805S401T
BEAD0805S471T
BEAD0805S501T
BEAD0805S601T
BEAD0805S801T
BEAD0805S102T
BEAD0805S122T
BEAD1206S260T
BEAD1206S320T
BEAD1206S390T
BEAD1206S700T
BEAD1206S900T
BEAD1206S121T
BEAD1206S151T
BEAD1206S201T
BEAD1206S301T
BEAD1206S401T
BEAD1206S501T
BEAD1206S601T
BEAD1206S801T
BEAD1206S102T
BEAD1206S122T
BEAD1206S152T
BEAD1206S202T
高频磁珠：
BEAD0402H260T
BEAD0402H400T
BEAD0402H600T
BEAD0402H700T
BEAD0402H900T
BEAD0402H101T
BEAD0402H121T
BEAD0402H151T
BEAD0402H221T
BEAD0402H301T
BEAD0402H451T
BEAD0402H601T
BEAD0402H751T
BEAD0402H102T
BEAD0603H070T
BEAD0603H100T
BEAD0603H220T
BEAD0603H300T
BEAD0603H400T
BEAD0603H470T
BEAD0603H600T
BEAD0603H750T
BEAD0603H800T
BEAD0603H121T
BEAD0603H151T
BEAD0603H221T
BEAD0603H241T
BEAD0603H301T
BEAD0603H401T
BEAD0603H601T
BEAD0603H102T
BEAD0603H122T
BEAD0603H152T
BEAD0603H202T
BEAD0603H252T
BEAD0805H050T
BEAD0805H070T
BEAD0805H260T
BEAD0805H300T
BEAD0805H600T
BEAD0805H121T
BEAD0805H151T
BEAD0805H201T
BEAD0805H221T
BEAD0805H301T
BEAD0805H601T
BEAD0805H102T
BEAD0805H152T
BEAD0805H202T
BEAD0805H222T
BEAD0805H272T
BEAD1206H190T
BEAD1206H700T
BEAD1206H121T
BEAD1206H601T
BEAD1206H202T
大电流磁珠：
BEAD0402S100A25T
BEAD0402S300A10T
BEAD0402S400A07T
BEAD0402S600A10T
BEAD0402S121A10T
BEAD0402S221A15T
BEAD0402S301A05T
BEAD0402S601A05T
BEAD0402S102A05T
BEAD0603S100A60T
BEAD0603S200A30T
BEAD0603S250A30T
BEAD0603S300A10T
BEAD0603S300A25T
BEAD0603S390A10T
BEAD0603S390A40T
BEAD0603600A30T
BEAD0603S600A40T
BEAD0603S700A20T
BEAD0603S101A20T
BEAD0603S121A20T
BEAD0603S121A30T
BEAD0603S151A20T
BEAD0603S181A15T
BEAD0603S201A30T
BEAD0603S221A15T
BEAD0603S221A20T
BEAD0603S301A20T
BEAD0603S501A15T
BEAD0603S601A10T
BEAD0603S601A20T
BEAD0603S102A08T
BEAD0603S122A08T
BEAD0603S152A05T
BEAD0805S100A10T
BEAD0805S100A60T
BEAD0805S220A60T
BEAD0805S330A40T
BEAD0805S400A08T
BEAD0805S420A40T
BEAD0805S520A10T
BEAD0805600A30T
BEAD0805S600A40T
BEAD0805S700A30T
BEAD0805S800A40T
BEAD0805S800A50T
BEAD0805S101A30T
BEAD0805S121A30T
BEAD0805S121A40T
BEAD0805S121A50T
BEAD0805S151A40T
BEAD0805S201A40T
BEAD0805S221A30T
BEAD0805S301A10T
BEAD0805S301A30T
BEAD0805S401A30T
BEAD0805S601A10T
BEAD0805S601A20T
BEAD0805S102A10T
BEAD0805S152A03T
BEAD0805S152A08T
BEAD1206S260A60T
BEAD1206S300A60T
BEAD1206S320A40T
BEAD1206S480A60T
BEAD1206S500A40T
BEAD1206S500A60T
BEAD1206S600A60T
BEAD1206S700A30T
BEAD1206S800A40T
BEAD1206S101A30T
BEAD1206S101A60T
BEAD1206S121A30T
BEAD1206S121A50T
BEAD1206S121A60T
BEAD1206S151A09T
BEAD1206S201A15T
BEAD1206S301A10T
BEAD1206S301A20T
BEAD1206S391A20T
BEAD1206S501A20T
BEAD1206S501A30T
BEAD1206S601A20T
BEAD1206S601A30T
BEAD1206S601A40T
BEAD1206S102A10T
BEAD1210S280A40T
BEAD1210S600A15T
BEAD1210S121A40T
BEAD1210S151A50T
BEAD1210S201A40T
BEAD1210S301A30T
BEAD1210S301A40T
BEAD1210S301A50T
BEAD1806S600A60T
BEAD1806S750A30T
BEAD1806S800A40T
BEAD1806S111A40T
BEAD1806SS151A20T
BEAD1806S102A15T
BEAD1812S800A60T
BEAD1812S900A60T
BEAD1812S900A90T
BEAD1812S121A40T
BEAD1812S121A60T
BEAD1812S121A90T
BEAD1812S151A50T
BEAD1812S681A40T
BEAD1812S102A30T
BEAD1812S132A30T
共模电感：
CHOK2012S670T
CHOK2012S900T
CHOK2012S121T
CHOK2012S161T
CHOK2012S181T
CHOK2012S201T
CHOK2012S221T
CHOK2012S261T
CHOK2012S371T
CHOK3216S330T
CHOK3216S500T
CHOK3216S900T
CHOK3216S121T
CHOK3216S161T
CHOK3216S221T
CHOK3216S261T
CHOK3216S501T
CHOK3216S601T
CHOK3216S102T
CHOK3216S222T
CHOK4525S600A30T
CHOK4525S121A20T
CHOK4525S601A15T
CHOK4525S701A20T
CHOK4525S102A10T
CHOK4525S122A10T
CHOK4525S142A10T
CHOK4528S231A35T
CHOK4528S421A32T
CHOK4528S601A25T
CHOK4528S801A23T
CHOK4528S901A22T
CHOK4528S102A21T
CHOK4528S142A20T
共模滤波器
BOK6E-1A90T
BOK6E-3A50T
BOK6E-5A50T
BOK6E-7A40T
BOK6E-10A30T
BOK6E-13A25T本公司，是一家以主营高频磁珠,EMC抑制元件,EMI磁珠企业。山东瑞丰环保科技有限公司，位于山东省青岛市黄岛经济开发区，是一家集系统研发、生产制造、技术服务和推广销售、产品进出口业务为一体的化工产品供应商。公司拥有生产、研发基地、并有完善的营销网络体系，是一家目前综合实力、科研开发创新能力、化工企业公司。
公司专注于通过为造纸企业提供优良的造纸化学品综合应用方案，进一步给造纸企业降低生产成本、提高生产效率、改进产品品质。我们不仅是一家产品供应商，更
