Descripción del producto
El motor trifásico asíncrono de cambio de polos y velocidad de la serie YDT, diseñado específicamente para cargas de ventiladores o bombas, es una evolución del motor serie Y.
sta serie se caracteriza por un diseño novedoso: su velocidad de rotación disminuye de forma cuadrática con el aumento de la carga de ventiladores o bombas. Las propiedades del par motor muestran que la potencia es proporcional al cuadrado de la velocidad de rotación. Esta correspondencia racional entre velocidad y potencia permite un considerable ahorro energético, lo que lo convierte en una fuerza motriz ideal para cargas de tipo ventilador.Se usa ampliamente en metalurgia, minería, industria textil, teñido, industria química, industria ligera, construcción, instalaciones civiles y otros sectores. Presenta ventajas como alta eficiencia, ahorro de energía, bajo nivel de ruido, baja vibración, buen aislamiento, funcionamiento confiable y fácil mantenimiento.
Los motores serie YDT cumplen con las normas internacionales IEC y han alcanzado niveles avanzados en comparación con productos similares nacionales y extranjeros.
Fabricado estrictamente según la norma JB/T8681-1998.
Designación del tipo
Y Motor asíncrono
D Velocidad
T Carga de ventiladores o bombas
250 Tamaño del bastidor
M Longitud del bastidor (S-Corto, M-Medio, L-Largo)
-6/8 Número de polos
Condición de sericia
1、Temperatura ambiente: se alterará con el cambio de estaciones pero no excede 40 ℃
2、Altitud: para ser usado por debajo de 1,000 metros sobre el nivel del mar.
3、Frencency nominal: 50Hz
4、Voltaje nominal: 380V
5、Deber: Continuo (S1)
6、Metod de inicio: se puede iniciar directamente en voltaje completo para todos los tamaños de motores.
DESIGNACIÓN PARA LIDERAR EL CABLE
ALTA VELOCIDAD |
VELOCIDAD MEDIA |
BAJA VELOCIDAD |
TIPO APLICABLE (NÚMEROS POIF) |
|
|
|
6/8 4/6 |
|
|
|
2/4 4/8 |
|
|
|
4/6/8 |
BRIDA ACOMPAÑANTE Y TERMINAL DE SALIDA
RELACIÓN DE VELOCIDAD |
VELOCIDAD SINCRÓNICA |
||||
1500/1000 |
1000/750 |
3000/1500 |
1500/750 |
1500/1000/750 |
|
CONEXIÓN |
Y/Y |
Y/Y |
2Y/Y |
2Y/Y |
2Y/Y/Y |
TERMINAL |
6 |
6 |
6 |
6 |
9 |
Fecha técnica
Tipo |
Producción (KW) |
Actual (A) |
Velocidad (r/min) |
Eficiencia (%) |
Factor de potencia (cosΦ) |
Ruido DB (A) |
Torque bloqueado Par nominal |
Corriente bloqueada Corriente nominal |
YDT80M.-2/4 |
0.75/0.17 |
1.9/0.7 |
2850/1410 |
68.0/58.0 |
0.82/0.60 |
79 |
2.0/1.4 |
7.5/5.5 |
YDT80M2-2/4 |
0.95/0.25 |
2.4/0.9 |
2850/1410 |
70.0/64.0 |
0.81/0.65 |
79 |
2.0/1.4 |
7.5/5.5 |
YDT90S-2/4 |
1.40/0.30 |
3.6/0.9 |
2810/1430 |
71.0/70.0 |
0.82/0.72 |
79 |
2.0/1.4 |
7.5/5.5 |
YDT90U2/4 |
1.90/0.40 |
4.3/1.1 |
2810/1430 |
75.0/72.0 |
0.86/0.73 |
83 |
2,0/1.4 |
7.5/5.5 |
YDT100L-2/4 |
2.50/0.65 |
5.3/1.8 |
2890/1420 |
82.0/74.0 |
0.87/0.72 |
83 |
2.0/1.4 |
7.5/5.5 |
TDT100L2-2/4 |
3.10/0.80 |
6.4/2.2 |
2890/1420 |
82.0/76.0 |
0.87/0.72 |
87 |
2.0/1.4 |
7.5/5.5 |
YDT112M-2/4 |
4.40/1.10 |
9.2/2.5 |
2875/1440 |
82.0/80.0 |
0.88/0.74 |
87 |
2.0/1.4 |
7.5/5.5 |
YDT1328-2/4 |
5.90/1.40 |
11.7/3.5 |
2910/1450 |
83.0/80.0 |
0.91/0.74 |
87 |
1.9/1.3 |
7.5/5.5 |
YPT132M-2/4 |
8.00/2.00 |
15.3/4.7 |
2910/1450 |
85.0/83.0 |
0.91/0.77 |
91 |
1.9/1.3 |
7.5/5.5 |
YDT160M-2/4 |
12.50/2.80 |
24.1/6.6 |
2930/1460 |
86.0/85.0 |
0.91/0.75 |
91 |
1.9/1.3 |
7.5/5.5 |
YDT160L-2/4 |
16.50/3.80 |
31.0/8.7 |
2930/1460 |
87.0/86.0 |
0.91/0.76 |
95 |
1.9/1.3 |
7.5/5.5 |
YDT90S-4/6 |
1.10/0.32 |
2.9/1.1 |
1400/930 |
70.0/63.0 |
0.78/0.66 |
95 |
1.8/1.6 |
7.0/6.0 |
YDT90L-4/6 |
1.40/0.45 |
3.5/1.5 |
1400/930 |
72.0/68.0 |
0.81/0.66 |
75 |
1.8/1.6 |
7.0/6.0 |
YDT100Li-4/6 |
2.20/0.70 |
5.312.2 |
1430/945 |
80.0/73.0 |
0.79/0.66 |
75 |
1.8/1.6 |
7.0/6.0 |
YDT100U-4/6 |
2.50/0.90 |
6.0/2.9 |
1430/945 |
81.0/74.0 |
0.78/0.67 |
78 |
1.8/1.6 |
7.0/6.0 |
YDT112M-4/6 |
3.20/1.10 |
7.1/3.1 |
1440/955 |
82.0/78.0 |
0.82/0.68 |
78 |
1.8/1.6 |
7.0/6.0 |
YDT132S-4/6 |
4.70/1.50 |
10.0/4.1 |
1450/970 |
84.0/81.0 |
0.83/0.68 |
82 |
1.8/1.6 |
7.0/6.0 |
YDT132M-4/6 |
6.70/2.20 |
13.8/5.7 |
1450/970 |
85.0/83.0 |
0.85/0.69 |
82 |
1.8/1.6 |
7.0/6.0 |
YDT160M-4/6 |
9.50/3.10 |
19.3/8.0 |
1455/975 |
87.0/83.0 |
0.84/0.69 |
82 |
1.8/1.6 |
7.5/7.0 |
YDT160L-4/6 |
12.00/4.00 |
24.4/10.0 |
1455/975 |
88.0/83.0 |
0.84/0.69 |
86 |
1.8/1.6 |
7.5/7.0 |
YDT180M-4/6 |
15.50/5.10 |
29.0/11.5 |
1460/980 |
87.0/81.0 |
0.84/0.72 |
86 |
1.5/1.5 |
7.5/7.0 |
YDT180L-4/6 |
18.50/6.20 |
34.3/13.9 |
1460/980 |
87.0/81.0 |
0.85/0.74 |
90 |
1.5/1.5 |
7.5/7.0 |
YDT200L-4/B |
26.00/8.70 |
48.2/19.1 |
1465/980 |
88.0/83.0 |
0.85/0.77 |
90 |
1.5/1.5 |
7.5/7.0 |
YDT225S-4/6 |
33.00/11.00 |
60.7/24.2 |
1470/980 |
89.0/84.0 |
0.86/0.84 |
92 |
1.5/1.5 |
7.5/70 |
YDT225M-4/6 |
39.00/13.00 |
71.3/27.3 |
1470/980 |
90.0/85.0 |
0.86/0.85 |
92 |
1.5/1.5 |
7.5/7.0 |
YDT250M-4/6 |
47.00/16.00 |
84.2/32.3 |
1475/985 |
90.0/85.0 |
0.89/0.87 |
92 |
1.5/1.5 |
7.5/7.0 |
YDT280S-4/6 |
55.00/18.50 |
99.6/37.3 |
1480/985 |
90 0/85 0 |
0.88/0.86 |
94 |
1.5/1.5 |
7.5/7.0 |
YDT280Mi-4/6 |
70.00/25.00 |
125.0/48.4 |
1480/985 |
91.0/87.0 |
0.88/0.87 |
94 |
1.5/1.5 |
7.5/7.0 |
YDT280Mz-4/6 |
84.00/28.00 |
150.6/54.8 |
1480/985 |
91.0/87.0 |
0.88/0.87 |
98 |
1.5/1.5 |
7.517.0 |
YDT315&4/6 |
95.00/32.00 |
177.4/65.3 |
1485/985 |
91.0/89.0 |
0.86/0.79 |
98 |
1.5/1.5 |
7.517.0 |
YDT315M-4/6 |
115.00/38.00 |
217.5/77.9 |
1485/985 |
92.0/90.0 |
0.86/0.78 |
98 |
1.5/1.5 |
7.5/70 |
YDT315L-4/6 |
135.00/45.00 |
260.0/90.5 |
1485/985 |
92.0/90.0 |
0.86/0.80 |
100 |
1.5/1.5 |
7.5/7.0 |
YDT315U-4/6 |
160.00/55.00 |
294.0/113.4 |
1485/985 |
93.0/91.0 |
0.86/0.80 |
100 |
1.5/1.5 |
7.5/7.0 |
YDT90S-4/8 |
1.00/0.22 |
2.5/1.0 |
1400/670 |
70.0/55.0 |
0.82/0.62 |
100 |
1.9/1.5 |
7.0/5.0 |
YDT90L-4/8 |
1.30/0.30 |
3.1/1.2 |
1400/670 |
72.0/58.0 |
0.82/0.63 |
75 |
1.9/1.5 |
7.0/5.0 |
YDT100L1-4/8 |
2.00/0.55 |
4.7/2.1 |
1420/690 |
80.0/65.0 |
0.80/0.61 |
75 |
1.9/1.5 |
7.0/5.0 |
YDT100L2-4/8 |
2.40/0.65 |
5.5/24 |
1420/690 |
80.0/66.0 |
0.81/0.61 |
78 |
1.9/1.5 |
7.0/5.0 |
YDT112M-4/8 |
3.20/0.90 |
7.4/3.3 |
1440/700 |
83.0/71.0 |
0.78/0.59 |
78 |
1.9/1.5 |
7.0/5.0 |
YDT132S-4/8 |
4.50/1.10 |
9.7/3.7 |
1450/715 |
84.0/75.0 |
0.82/0.59 |
82 |
2.0/1.2 |
7.0/5.0 |
YOT132M-4/8 |
6.30/1.50 |
13.2/4.9 |
1450/715 |
85.0/78.0 |
0.83/0.59 |
82 |
2.0/1.2 |
7.0/5.0 |
YDT160M-4/8 |
8.90/2.00 |
18.2/5.4 |
1440/720 |
85.0/82.0 |
0.85/0.67 |
82 |
2.0/1.2 |
7.0/5.0 |
YDT160L-4/8 |
12.00/2.70 |
23.5/6.9 |
1440/720 |
86.0/84.0 |
0.86/0.67 |
86 |
2.0/1.2 |
7.0/5.0 |
Fecha técnica
Tipo |
Producción (KW) |
Actual (A) |
Velocidad (r/min) |
Eficiencia (%) |
Factor de potencia (COSΦ) |
Ruido DB (A) |
Torqua bloqueado Par nominal |
Corriente locaides Corriente nominal |
YDT180M-4/8 |
16.00/4.00 |
31.8/10.9 |
1470/725 |
88.0/84.0 |
0.85/0.65 |
90 |
2.0/1.2 |
7.0/5.0 |
YDT180L-4/8 |
19.50/5.00 |
38.6/13.4 |
1470/725 |
89.0/85.0 |
0.85/0.66 |
2.0/1.2 |
7.0/5.0 |
|
YDT200L-4/8 |
29.00/7.50 |
56.8/19.6 |
1475/730 |
90.0/87.0 |
0.85/0.66 |
92 |
2.0/1.2 |
7.0/5.0 |
YDT225M-4/8 |
40.00/9.50 |
74.6/25.5 |
1475/735 |
91.0/88.0 |
0.88/0.64 |
94 |
2.0/1.3 |
7.5/5.0 |
YDT250M-4/8 |
52.00/14.50 |
97.3/37.0 |
1480/735 |
91.0/88.0 |
0.87/0.66 |
2.0/1.3 |
7.5/5.0 |
|
YDT280S-4/8 |
65.00/17.00 |
122.8/41.8 |
1485/735 |
91.0/89.0 |
0.87/0.68 |
98 |
2.0/1.3 |
7.5/5.0 |
YDT280M-4/8 |
75.00/18.50 |
137.4/43.9 |
1485/740 |
91.0/90.0 |
0.88/0.70 |
2.0/1.3 |
7.5/5.0 |
|
YDT315S-4/8 |
92.00/25.00 |
174.8/58.7 |
1485/740 |
91.0/90.0 |
0.86/0.70 |
100 |
2.0/1.3 |
7.5/5.0 |
YDT315M-4/8 |
110.00/30.00 |
208.3/70.1 |
1485/740 |
92.0/91.0 |
0.86/0.70 |
2.0/1.3 |
7.5/5.0 |
|
YDT315L2-4/8 |
135.00/36.00 |
253.3/84.0 |
1485/740 |
92.0/91.0 |
0.87/0.70 |
2.0/1.3 |
7.5/5.0 |
|
YDT315L2-4/8 |
155.00/41.00 |
288.0/94.7 |
1485/740 |
92.0/91.0 |
0.87/0.71 |
2.0/1.3 |
7.5/5.0 |
|
YDT90S-6/8 |
0.65/0.25 |
2.3/1.3 |
930/700 |
65.0/52.0 |
0.63/0.85 |
1.8/1.6 |
7.0/6.0 |
|
YDT90L-6/8 |
0.80/0.35 |
2.9/1.6 |
930/700 |
67.0/56.0 |
0.62/0.58 |
73 |
1.8/1.6 |
7.0/6.0 |
YDT100L1-6/8 |
1.30/0.55 |
4.1/2.3 |
950/700 |
71.0/62.0 |
0.66/0.58 |
1.8/1.6 |
7.0/6.0 |
|
YDT100L2-6/8 |
1.60/0.75 |
3.212.9 |
950/700 |
74.0/66.0 |
0.67/0.59 |
75 |
1.8/1.6 |
7.0/6.0 |
YDT112M-6/8 |
2.20/0.90 |
6.0/3.4 |
950/705 |
74.0/67.0 |
0.68/0.69 |
1.8/1.6 |
7.0 丨 6.0 |
|
YDT132S-6/8 |
2.60/1.20 |
6.9/4.1 |
960/720 |
79.0/73.0 |
0.71/0.60 |
79 |
1.8/1.6 |
7.0/6.0 |
YDT132M1-6/8 |
3.30/1.60 |
8.0/5.3 |
960/720 |
80.0/76.0 |
0.76/0.60 |
1.8/1.6 |
7.0/6.0 |
|
YDT132M2-6/8 |
4.50/2.20 |
11.0/7.1 |
960/720 |
82 0/77.0 |
0.75/0.60 |
1.8/1.6 |
7.0/6.0 |
|
YDT160M-6/8 |
6.50/3.20 |
14.9/9.5 |
970/725 |
84.0/80.0 |
0.76/0.61 |
83 |
1.8/1.6 |
7.0/6.0 |
YDT160L-6/8 |
9.00/4.50 |
20.3/13.0 |
970/725 |
86.0/82.0 |
0.77/0.62 |
86 |
1.8/1.6 |
7.0/6.0 |
YDT180L-6/8 |
13.00/6.50 |
26.0/15.1 |
970/725 |
66.0/81.0 |
0.77/0.65 |
1.5/1.5 |
7.0/6.0 |
|
YDT200L1-6/8 |
17.00/8.50 |
35.5/20.6 |
970/730 |
87.0/82.0 |
0.80/0.66 |
88 |
1.5/1.5 |
7.0/6.0 |
YDT200L2-6/8 |
22.00/11.00 |
44.3/27.8 |
970/730 |
88.0/83.0 |
0.80/0.68 |
1.5/1.5 |
7.0/6.0 |
|
YDT225M-6/8 |
30.00/15.00 |
62.3/32.2 |
980/730 |
89.0/87.0 |
0.83/0.78 |
92 |
1.5/1.5 |
7.0/6.0 |
YDT250M-6/8 |
37.00/18.00 |
72.1/38.5 |
980/735 |
90.0/87.0 |
0.86/0.60 |
1.5/1.5 |
7.0/6.0 |
|
YDT280S-6/8 |
45.00/22.00 |
86.8/46.2 |
985/735 |
90.0/88.0 |
0.86/0.81 |
96 |
1.5/1.5 |
7.0 丨6.0 |
YDT280M1-6/8 |
55.00/28.00 |
104.7/57.2 |
985/735 |
91.0/89.0 |
0.82/0.81 |
1.5/1.5 |
7.0/6.0 |
|
YDT280M2-6/8 |
65.00/32.00 |
122.0/66.6 |
985/735 |
91.0/89.0 |
0.82/0.81 |
100 |
1.5/1.5 |
7.0/6.0 |
YDT315S-6/8 |
75.00/37.00 |
145.1/40.4 |
985/735 |
91.0/90.0 |
0.84/0.78 |
1.5/1.5 |
7.0/6.0 |
|
YDT315M-6/8 |
90.00/45.00 |
171.6/90.4 |
985/735 |
92.0/91.0 |
0.85/0.82 |
1.5/1.5 |
7.0/6.0 |
|
YDT315L1-6/8 |
110.00/55.00 |
209.5/115.7 |
985/735 |
92.0/91.0 |
0.85/0.78 |
82 |
1.5/1.5 |
7.0/6.0 |
YDT315L2-6/8 |
132.00/66.00 |
252.0/137.4 |
985/735 |
92.0/91.0 |
0.85/0.78 |
1.5/1.5 |
7.0 丨6.0 |
|
YDT112M-4/6/8 |
2.30/0.80/0.60 |
5.9/3.272.7 |
1455/960/7.5 |
79.0/65.0/61.0 |
0.73/0.57/0.53 |
2.0/1.7/1.3 |
7.5/6.5/4.0 |
|
YDT132S-4/6/8 |
3.10/1.10/0.80 |
7.1/3.9/3.1 |
1460/970/720 |
81.0/71.0/68.0 |
0.79/0.60/0.57 |
2.0/1.7/1.3 |
7.5/6.5/4.0 |
|
YDT132M-4/6/8 |
4.50/1.50/1.10 |
9.S/4.7/3.9 |
1460/970/720 |
83.0/74.0/72.0 |
0.82/0.65/0.57 |
2.0/1.7/1.3 |
7.5/6.5/4.0 |
|
YDT160M-4/6/8 |
7.50/2.60/1.50 |
16.0/7.3/4.8 |
1460/980/730 |
84.0/79.0/79.0 |
0.82/0.67/0.58 |
1.8/1.6/0.95 |
7.5/6.5/4.0 |
|
YDT160L-4/6/8 |
10.20/3.50/2.0 |
20.6/9.5/6.0 |
1460/980/730 |
86.0/81.0/81.0 |
0.85/0.68/0.60 |
86 |
1.8/1.6/0.95 |
7.5/6.5/4.0 |
YDT180M-4/6/8 |
13.00/4.50/2.60 |
24.2/10.6/7.7 |
1460/980/730 |
86.0/80.0/80.0 |
0.90/0.80/0.63 |
1.8/1.6/0.95 |
8.0/7.5/5.5 |
|
YDT180L-4/6/8 |
16.00/6.00/3.30 |
29.6/13.6/9.7 |
1460/980/730 |
87.0/81.0/81.0 |
0.90/0.81/0.63 |
90 |
1.8/1.6/0.95 |
8.0/7.5/5.5 |
YDT200L-4/6/8 |
22.00/8.00/4.50 |
40.6/17.8/13.2 |
1460/980/730 |
87.1/82.0/82.0 |
0.90/0.82/0.62 |
1.8/1.6/0.95 |
8.0/7.5/5.5 |
|
YDT225S-4/6/8 |
28.00/10.00/5.50 |
53.3/21.1/13.4 |
1470/980/740 |
89.0/83.0/85.0 |
0.88/0.85/0.70 |
92 |
1.8/1.7/1.1 |
8.0/7.5/5.5 |
YDT225M-4/6/8 |
34.00/12.00/7.50 |
63.1/24.7/17.2 |
1470/980/740 |
89.0/83.0/87.0 |
0.89/0.86/0.74 |
1.8/1.7/1.1 |
8.0/7.5/5.5 |
|
YDT250M-4/6/8 |
44.00/15.50/10.00 |
78.1/32.1/22.6 |
1475/985/740 |
90.0/85.0/88.0 |
0.92/0.85/0.75 |
1.8/1.7/1.1 |
8.0/7.5/5.5 |
|
YDT280S-4/6/8 |
55.00/18.00/12.00 |
98.5/37.0/27.3 |
1480/990/740 |
90.0/85.0/88.0 |
0.92/0.85/0.74 |
1.8/1.7/1.1 |
8.0/7.5/5.5 |
|
YDT280M-4/6/8 |
66.00/21.00/15.00 |
116.9/42.5/32.8 |
1480/990/740 |
91.0/86.0/89.0 |
0.92/0.86/0.76 |
94 |
1.8/1.7/1.1 |
8.0/7.5/5.5 |
YDT315S-4/6/8 |
75.00/27.00/19.00 |
136.0/55.3/43.8 |
1480/990/740 |
90.0/87.0/89.0 |
0.91/0.84/0.73 |
1.8/1.4/1.3 |
8.0/7.5/5.5 |
|
YDT315M4/6/0 |
90.00/32.00/22.00 |
162.0/64.8/50.6 |
1480/990/740 |
91.0/88.0/90.0 |
0.91/0.84/0.72 |
100
|
1.8/1.4/1.3 |
8.0/7.5/5.5 |
YDT315L1-4/6/8 |
115.00/40.00/28.00 |
204.2/79.7/62.5 |
1480/990/740 |
91.0/88.0/90.0 |
0.91/0.85/0.74 |
1.8/1.4/1.3 |
8.0/7.5/5.5 |
|
YDT3152-4/6/8 |
140.00/51.00/35.00 |
253.6/101.8/80.2 |
1480/990/740 |
92.0/89.0/91.0 |
0.90/0.84/0.72 |
1.8/1.4/1.3 |
8.0/7.5/5.5 |
ZHEJIANG QIZHI MOTOR CO., LTD. is a professional production of various kinds of small and medium-sized modern enterprise, the main products include ME2 series Grundfos high-efficiency aluminum motor, Motor asíncrono trifásico de polos consecuentes serie YDT, IE1 series three-phase asynchronous motor, IE2 series three-phase asynchronous motor, IE3 series super efficient three-phase asynchronous motor, YD series pole-changing multi-speed three phase asynchronous electric motor, YDT series three-phase consequent-poles asynchronous motor, YCT series electromagnetic speedregulating motor, MS series three-phase asynchronous motor with aluminium housing, YVF2 series three-phase frequency controlled asynchronous motor, YVF2 series of frequency conversion aluminum shell speed three-phase asynchronous motor, YEJ series electromagnetic braking three-phase asynchronous motor, YC/YCL series heavy-duty single-phase capacitors start induction motor, MLYL seriessingle-phase dual-capacitor induction motor, YYB Series pump for three-phase asynchronous motor, IRG/SW Single stage single pipette centrifugal pump, CDLICDLF stainless steel vertical multistage pump, etc. OEM Motor asíncrono trifásico de polos consecuentes serie YDT Factory
ZHEJIANG QIZHI MOTOR CO., LTD. depending on the talent for the enterprise development, with strong technology research and development team, has the industry's most advanced automated nc production equipment, advanced technology and equipment, usingadvanced design software for product design, perfect modern management system, strictly in accordance with "ISO-9001"national quality management system certification, production to make the success rate of new product development speed and improve, for the same industry leading level. As Custom Motor asíncrono trifásico de polos consecuentes serie YDT Suppliers, the company has advanced motor testing equipment, to guarantee product quality, won the domestic andforeign customers a wide range of trust and praise, the company through the Chinese CCC certification and CQC certification, ISO-
9001 international quality system certification, CE certification, SGS certification (ROHS), and obtained the national electrical products export quality license, with our continuously innovation in the face of the market; The products sell well all over the country and exported to southeast Asia, Germany, Italy, Poland, Britain, France, the Middle East, South America, Africa, Asia, etc. More than 80 countries and regions. In domestic widely used in air compressor, washing machine, water pump, fan, mechanical industry, reducer, such as the host.
We would like to more higher quality product, more lower preferential price, complete thoughtul pre-sale, sale, after-sale service, cooperate with friends from all walks of life, hand in hand advance together, altogether will create the glorious future.
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