Basic Info.
Transport Package
Wooden Case Packing
Product Description
Product Description
Ball screw is an ideal product to convert rotary motion into linear motion or linear motion into rotary motion.
Ball screw is the most commonly used transmission element in tool machinery and precision machinery. Its main function is to convert rotary motion into linear motion, or torque into axial repeated force. At the same time, it has the characteristics of high precision, reversibility and high efficiency. Due to the small friction resistance, ball screws are widely used in various industrial equipment and precision instruments. Product Photos
Product Parameters
HG(1) HGH-CA/HGH-HA | (mm) | (mm) | (mm) | | | | | |
| | | | |
H | H1 | N | W | B | B1 | C | L1 | L | K1 | K2 | G | Mxl | T | H2 | H3 | WR | HR | D | h | d | P | E | (mm) | C(KN) | C0(KN) | MR kN-m | MP kN-m | MY kN-m | kg | kg/m |
HGH 15CA | 28 | 4.3 | 9.5 | 34 | 26 | 4 | 26 | 39.4 | 61.4 | 10 | 4.85 | 5.3 | M4X5 | 6 | 7.95 | 7.7 | 15 | 15 | 7.5 | 5.3 | 4.5 | 60 | 20 | M4X16 | 11.38 | 16.97 | 0.12 | 0.10 | 0.10 | 0.18 | 1.45 |
HGH 20CA | 30 | 4.6 | 12 | 44 | 32 | 6 | 36 | 50.5 | 77.5 | 12.25 | 6 | 12 | M5X6 | 8 | 6 | 6 | 20 | 17.5 | 9.5 | 8.5 | 6 | 60 | 20 | M5X16 | 17.75 | 27.76 | 0.27 | 0.20 | 0.20 | 0.30 | 2.21 |
HGH 20HA | 50 | 65.2 | 92.2 | 12.6 | 21.18 | 35.9 | 0.35 | 0.35 | 0.35 | 0.39 |
HGH 25CA | 40 | 5.5 | 12.5 | 48 | 35 | 6.5 | 35 | 58 | 84 | 15.7 | 6 | 12 | M6X8 | 8 | 10 | 9 | 23 | 22 | 11 | 9 | 7 | 60 | 20 | M6X20 | 26.48 | 36.49 | 0.42 | 0.33 | 0.33 | 0.51 | 3.21 |
HGH 25HA | 50 | 78.6 | 104.6 | 18.5 | 32.75 | 49.44 | 0.56 | 0.57 | 0.57 | 0.69 |
HGH 30CA | 45 | 6 | 16 | 60 | 40 | 10 | 40 | 70 | 97.4 | 20.25 | 6 | 12 | M8X10 | 8.5 | 9.5 | 13.8 | 28 | 26 | 14 | 12 | 9 | 80 | 20 | M8X25 | 38.74 | 52.19 | 0.66 | 0.53 | 0.53 | 0.88 | 4.47 |
HGH 30HA | 60 | 93 | 120.4 | 21.75 | 47.27 | 69.16 | 0.88 | 0.92 | 0.92 | 1.16 |
HGH 35CA | 55 | 7.5 | 18 | 70 | 50 | 10 | 50 | 80 | 112.4 | 20.6 | 7 | 12 | M8X12 | 10.2 | 16 | 19.6 | 34 | 29 | 14 | 12 | 9 | 80 | 20 | M8X25 | 49.52 | 69.16 | 1.16 | 0.81 | 0.81 | 1.45 | 6.30 |
HGH 35HA | 72 | 105.8 | 138.2 | 22.5 | 60.21 | 91.63 | 1.54 | 1.40 | 1.40 | 1.92 |
HGH 45CA | 70 | 9.5 | 20.5 | 86 | 60 | 13 | 60 | 97 | 139.4 | 23 | 10 | 12.9 | M10X7 | 16 | 18.5 | 30.5 | 45 | 38 | 20 | 17 | 14 | 105 | 22.5 | M12X35 | 77.57 | 102.71 | 1.98 | 1.55 | 1.55 | 2.73 | 10.41 |
HGH 45HA | 80 | 128.8 | 171.2 | 28.9 | 94.54 | 136.46 | 2.63 | 2.68 | 2.68 | 3.61 |
HGH 55CA | 80 | 13 | 23.5 | 100 | 75 | 12.5 | 75 | 117.7 | 166.7 | 27.35 | 11 | 12.9 | M12X18 | 17.5 | 22 | 29 | 53 | 44 | 23 | 20 | 16 | 120 | 30 | M14X45 | 114.44 | 148.33 | 3.69 | 2.64 | 2.64 | 4.17 | 15.08 |
HGH 55HA | 95 | 155.8 | 204.8 | 36.4 | 139.35 | 196.2 | 4.88 | 4.57 | 4.57 | 5.49 |
HGH 65CA | 90 | 15 | 31.5 | 126 | 76 | 25 | 70 | 144.2 | 200.2 | 43.1 | 14 | 12.9 | M16X20 | 25 | 15 | 15 | 63 | 53 | 26 | 22 | 18 | 150 | 35 | M16X50 | 163.63 | 215.33 | 6.65 | 4.27 | 4.27 | 7.00 | 21.18 |
HGH 65HA | 120 | 203.6 | 259.6 | 47.8 | 208.36 | 303.13 | 9.38 | 7.38 | 7.38 | 9.82 |
(2)HGL-CA/HGL-HA | (mm) | (mm) | (mm) | | | | | |
| | | | |
H | H1 | N | W | B | B1 | C | L1 | L | K1 | K2 | G | Mxl | T | H2 | H3 | WR | HR | D | h | d | P | E | (mm) | C(KN) | C0(KN) | MR kN-m | MP kN-m | MY kN-m | kg | kg/m |
HGL 15CA | 24 | 4.3 | 9.5 | 34 | 26 | 4 | 26 | 39.4 | 61.4 | 10 | 4.85 | 5.3 | M4X4 | 6 | 3.95 | 3.7 | 15 | 15 | 7.5 | 5.3 | 4.5 | 60 | 20 | M4X16 | 11.38 | 16.97 | 0.12 | 0.10 | 0.10 | 0.14 | 1.45 |
HGL 25CA | 36 | 5.5 | 12.5 | 48 | 35 | 6.5 | 35 | 58 | 84 | 15.7 | 6 | 12 | M6X6 | 8 | 6 | 5 | 23 | 22 | 11 | 9 | 7 | 60 | 20 | M6X20 | 26.48 | 36.49 | 0.42 | 0.33 | 0.33 | 0.42 | 3.21 |
HGL 25HA | 50 | 78.6 | 104.6 | 18.5 | 32.75 | 49.44 | 0.56 | 0.57 | 0.57 | 0.57 |
HGL 30CA | 42 | 6 | 16 | 60 | 40 | 10 | 40 | 70 | 97.4 | 20.25 | 6 | 12 | M8X10 | 8.5 | 6.5 | 10.8 | 28 | 26 | 14 | 12 | 9 | 80 | 20 | M8X25 | 38.74 | 52.19 | 0.66 | 0.53 | 0.53 | 0.78 | 4.47 |
HGL 30HA | 60 | 93 | 120.4 | 21.75 | 47.27 | 69.16 | 0.88 | 0.92 | 0.92 | 1.03 |
HGL 35CA | 48 | 7.5 | 18 | 70 | 50 | 10 | 50 | 80 | 112.4 | 20.6 | 7 | 12 | M8X12 | 10.2 | 9 | 12.6 | 34 | 29 | 14 | 12 | 9 | 80 | 20 | M8X25 | 49.52 | 69.16 | 1.16 | 0.81 | 0.81 | 1.14 | 6.30 |
HGL 35HA | 72 | 105.8 | 138.2 | 22.5 | 60.21 | 91.63 | 1.54 | 1.40 | 1.40 | 1.52 |
HGL 45CA | 60 | 9.5 | 20.5 | 86 | 60 | 13 | 60 | 97 | 139.4 | 23 | 10 | 12.9 | M10X17 | 16 | 8.5 | 20.5 | 45 | 38 | 20 | 17 | 14 | 105 | 22.5 | M12X35 | 77.57 | 102.71 | 1.98 | 1.55 | 1.55 | 2.08 | 10.41 |
HGL 45HA | 80 | 128.8 | 171.2 | 28.9 | 94.54 | 136.46 | 2.63 | 2.68 | 2.68 | 2.75 |
HGL 55CA | 70 | 13 | 23.5 | 100 | 75 | 12.5 | 75 | 117.7 | 166.7 | 27.35 | 11 | 12.9 | M12X18 | 17.5 | 12 | 19 | 53 | 44 | 23 | 20 | 16 | 120 | 30 | M14X45 | 114.44 | 148.33 | 3.69 | 2.64 | 2.64 | 3.25 | 15.08 |
HGL 55HA | 95 | 155.8 | 204.8 | 36.4 | 139.35 | 196.2 | 4.88 | 4.57 | 4.57 | 4.27 |
(3)HGW-CA/HGW-HA | (mm) | (mm) | (mm) | | | | | |
| | | | |
H | H1 | N | W | B | B1 | C | L1 | L | K1 | K2 | G | M | T | T1 | H2 | H3 | WR | HR | D | h | d | P | E | (mm) | C(KN) | C0(KN) | MR kN-m | MP kN-m | MY kN-m | kg | kg/m |
HGW 15CA | 24 | 4.3 | 16 | 47 | 38 | 4.5 | 30 | 39.4 | 61.4 | 8 | 4.85 | 5.3 | M5 | 6 | 8.9 | 3.95 | 3.7 | 15 | 15 | 7.5 | 5.3 | 4.5 | 60 | 20 | M4X16 | 11.38 | 16.97 | 0.12 | 0.10 | 0.10 | 0.17 | 1.45 |
HGW 20CA | 30 | 4.6 | 21.5 | 63 | 53 | 5 | 40 | 50.5 | 77.5 | 10.25 | 6 | 12 | M6 | 8 | 10 | 6 | 6 | 20 | 17.5 | 9.5 | 8.5 | 6 | 60 | 20 | M5X16 | 17.75 | 27.76 | 0.27 | 0.20 | 0.20 | 0.40 | 2.21 |
HGW 20HA | 65.2 | 92.2 | 17.6 | 21.18 | 35.9 | 0.35 | 0.35 | 0.35 | 0.52 |
HGW 25CA | 36 | 5.5 | 23.5 | 70 | 57 | 6.5 | 45 | 58 | 84 | 10.7 | 6 | 12 | M8 | 8 | 14 | 6 | 5 | 23 | 22 | 11 | 9 | 7 | 60 | 20 | M6X20 | 26.48 | 36.49 | 0.42 | 0.33 | 0.33 | 0.59 | 3.21 |
HGW 25HA | 78.6 | 104.6 | 21 | 32.75 | 49.44 | 0.56 | 0.57 | 0.57 | 0.80 |
HGW 30CA | 42 | 6 | 31 | 90 | 72 | 9 | 52 | 70 | 97.4 | 14.25 | 6 | 12 | M10 | 8.5 | 16 | 6.5 | 10.8 | 28 | 26 | 14 | 12 | 9 | 80 | 20 | M8X25 | 38.74 | 52.19 | 0.66 | 0.53 | 0.53 | 1.09 | 4.47 |
HGW 30HA | 93 | 120.4 | 25.75 | 47.27 | 69.16 | 0.88 | 0.92 | 0.92 | 1.44 |
HGW 35CA | 48 | 7.5 | 33 | 100 | 82 | 9 | 62 | 80 | 112.4 | 14.6 | 7 | 12 | M10 | 10.1 | 18 | 9 | 12.6 | 34 | 29 | 14 | 12 | 9 | 80 | 20 | M8X25 | 49.52 | 69.16 | 1.16 | 0.81 | 0.81 | 1.56 | 6.30 |
HGW 35HA | 105.8 | 138.2 | 27.5 | 60.21 | 91.63 | 1.54 | 1.40 | 1.40 | 2.06 |
HGW 45CA | 60 | 9.5 | 37.5 | 120 | 100 | 10 | 80 | 97 | 139.4 | 13 | 10 | 12.9 | M12 | 15.1 | 22 | 8.5 | 20.5 | 45 | 38 | 20 | 17 | 14 | 105 | 22.5 | M12X35 | 77.57 | 102.71 | 1.98 | 1.55 | 1.55 | 2.79 | 10.41 |
HGW 45HA | 128.8 | 171.2 | 28.9 | 94.54 | 136.46 | 2.63 | 2.68 | 2.68 | 3.69 |
HGW 55CA | 70 | 13 | 43.5 | 140 | 116 | 12 | 95 | 117.7 | 166.7 | 17.35 | 11 | 12.9 | M14 | 17.5 | 26.5 | 12 | 19 | 53 | 44 | 23 | 20 | 16 | 120 | 30 | M14X45 | 114.44 | 148.33 | 3.69 | 2.64 | 2.64 | 4.52 | 15.08 |
HGW 55HA | 155.8 | 204.8 | 36.4 | 139.35 | 196.2 | 4.88 | 4.57 | 4.57 | 5.96 |
HGW 65CA | 90 | 15 | 53.5 | 170 | 142 | 14 | 110 | 144.2 | 200.2 | 23.1 | 14 | 12.9 | M16 | 25 | 37.5 | 15 | 15 | 63 | 53 | 26 | 22 | 18 | 150 | 35 | M16X50 | 163.63 | 215.33 | 6.65 | 4.27 | 4.27 | 9.17 | 21.18 |
HGW 65HA | 203.6 | 259.6 | 52.8 | 208.36 | 303.13 | 9.38 | 7.38 | 7.38 | 12.89 |
EGEG(1)EGH-SA/EGH-CA | (mm) | (mm) | (mm) | | | | | |
| | | | |
H | H1 | N | W | B | B1 | C | L1 | L | K1 | K2 | G | Mxl | T | H2 | H3 | WR | HR | D | h | d | P | E | (mm) | C(KN) | C0(KN) | MR kN-m | MP kN-m | MY kN-m | kg | kg/m |
EGH15SA | 24 | 4.5 | 9.5 | 34 | 26 | 4 | - | 23.1 | 40.1 | 14.8 | 3.5 | 5.7 | M4X6 | 6 | 5.5 | 6 | 15 | 12.5 | 6 | 4.5 | 3.5 | 60 | 20 | M3X16 | 5.35 | 9.40 | 0.08 | 0.04 | 0.04 | 0.09 | 1.25 |
EGH15CA | 26 | 39.8 | 56.8 | 10.15 | 7.83 | 16.19 | 0.13 | 0.10 | 0.10 | 0.15 |
EGH20SA | 28 | 6 | 11 | 42 | 32 | 5 | - | 29 | 50 | 18.75 | 4.15 | 12 | M5X7 | 7.5 | 6 | 6 | 20 | 15.5 | 9.5 | 8.5 | 6 | 60 | 20 | M5X16 | 7.23 | 12.74 | 0.13 | 0.06 | 0.06 | 0.15 | 2.08 |
EGH20CA | 32 | 48.1 | 69.1 | 12.3 | 10.31 | 21.13 | 0.22 | 0.16 | 0.16 | 0.24 |
EGH25SA | 33 | 7 | 12.5 | 48 | 35 | 6.5 | - | 35.5 | 59.1 | 21.9 | 4.56 | 12 | M6X9 | 8 | 8 | 8 | 23 | 18 | 11 | 9 | 7 | 60 | 20 | M6X20 | 11.40 | 19.50 | 0.23 | 0.12 | 0.12 | 0.25 | 2.67 |
EGH25CA | 35 | 59 | 82.6 | 16.15 | 16.27 | 32.40 | 0.38 | 0.32 | 0.32 | 0.41 |
EGH30SA | 42 | 10 | 16 | 60 | 40 | 10 | - | 41.5 | 69.5 | 26.75 | 6 | 12 | M8X12 | 9 | 8 | 9 | 28 | 23 | 11 | 9 | 7 | 80 | 20 | M6X25 | 16.42 | 28.10 | 0.40 | 0.21 | 0.21 | 0.45 | 4.35 |
EGH30CA | 40 | 70.1 | 98.1 | 21.05 | 23.70 | 47.46 | 0.68 | 0.55 | 0.55 | 0.76 |
EGH35SA | 48 | 11 | 18 | 70 | 50 | 10 | - | 45 | 75 | 28.5 | 7 | 12 | M8X12 | 10 | 8.5 | 8.5 | 34 | 27.5 | 14 | 12 | 9 | 80 | 20 | M8X25 | 22.66 | 37.38 | 0.56 | 0.31 | 0.31 | 0.74 | 6.14 |
EGH35CA | 50 | 78 | 108 | 20 | 33.35 | 64.84 | 0.98 | 0.69 | 0.69 | 1.10 |
(2)EGW-SA/EGW-CA | (mm) | (mm) | (mm) | | | | | |
| | | | |
H | H1 | N | W | B | B1 | C | L1 | L | K1 | K2 | G | M | T | T1 | H2 | H3 | WR | HR | D | h | d | P | E | (mm) | C(KN) | C0(KN) | MR kN-m | MP kN-m | MY kN-m | kg | kg/m |
EGW 15SA | 24 | 4.5 | 18.5 | 52 | 41 | 5.5 | - | 23.1 | 40.1 | 14.8 | 3.5 | 5.7 | M5 | 5 | 7 | 5.5 | 6 | 15 | 12.5 | 6 | 4.5 | 3.5 | 60 | 20 | M3X16 | 5.35 | 9.40 | 0.08 | 0.04 | 0.04 | 0.12 | 1.25 |
EGW 15CA | 26 | 39.8 | 56.8 | 10.15 | 7.83 | 16.19 | 0.13 | 0.10 | 0.10 | 0.21 |
EGW 20SA | 28 | 6 | 19.5 | 59 | 49 | 5 | - | 29 | 50 | 18.75 | 4.15 | 12 | M6 | 7 | 9 | 6 | 6 | 20 | 15.5 | 9.5 | 8.5 | 6 | 60 | 20 | M5X16 | 7.23 | 12.74 | 0.13 | 0.06 | 0.06 | 0.19 | 2.08 |
EGW 20CA | 32 | 48.1 | 69.1 | 12.3 | 10.31 | 21.13 | 0.22 | 0.16 | 0.16 | 0.32 |
EGW 25SA | 33 | 7 | 25 | 73 | 60 | 6.5 | - | 35.5 | 59.1 | 21.9 | 4.55 | 12 | M8 | 7.5 | 10 | 8 | 8 | 23 | 18 | 11 | 9 | 7 | 60 | 20 | M6X20 | 11.40 | 19.50 | 0.23 | 0.12 | 0.12 | 0.35 | 2.67 |
EGW 25CA | 35 | 59 | 82.6 | 16.15 | 16.27 | 32.40 | 0.38 | 0.32 | 0.32 | 0.59 |
EGW 30SA | 42 | 10 | 31 | 90 | 72 | 9 | - | 41.5 | 69.5 | 26.75 | 6 | 12 | M10 | 7 | 10 | 8 | 9 | 28 | 23 | 11 | 9 | 7 | 80 | 20 | M6X25 | 16.42 | 28.10 | 0.40 | 0.21 | 0.21 | 0.62 | 4.35 |
EGW 30CA | 40 | 70.1 | 98.1 | 21.05 | 23.70 | 47.46 | 0.68 | 0.55 | 0.55 | 1.04 |
EGW 35SA | 48 | 11 | 33 | 100 | 82 | 9 | - | 45 | 75 | 28.5 | 7 | 12 | M10 | 10 | 13 | 8.5 | 8.5 | 34 | 27.5 | 14 | 12 | 9 | 80 | 20 | M8X25 | 22.66 | 37.38 | 0.56 | 0.31 | 0.31 | 0.84 | 6.14 |
EGW 35CA | 50 | 78 | 10.8 | 20 | 33.35 | 64.84 | 0.98 | 0.69 | 0.69 | 1.45 |
(3)EGW-SB/EGW-CB | (mm) | (mm) | (mm) | | | | | |
| | | | |
H | H1 | N | W | B | B1 | C | L1 | L | K1 | K2 | G | M | T | T1 | H2 | H3 | WR | HR | D | h | d | P | E | (mm) | C(KN) | C0(KN) | MR kN-m | MP kN-m | MY kN-m | kg | kg/m |
EGW 15SB | 24 | 4.5 | 18.5 | 52 | 41 | 5.5 | - | 23.1 | 40.1 | 14.8 | 3.5 | 5.7 | Ø4.5 | 5 | 7 | 5.5 | 6 | 15 | 12.5 | 6 | 4.5 | 3.5 | 60 | 20 | M3X16 | 5.35 | 9.40 | 0.08 | 0.04 | 0.04 | 0.12 | 1.25 |
EGW 15CB | 26 | 39.8 | 56.8 | 10.15 | 7.83 | 16.19 | 0.13 | 0.10 | 0.10 | 0.21 |
EGW 20SB | 28 | 6 | 19.5 | 59 | 49 | 5 | - | 29 | 50 | 18.75 | 4.15 | 12 | Ø5.5 | 7 | 9 | 6 | 6 | 20 | 15.5 | 9.5 | 8.5 | 6 | 60 | 20 | M5X16 | 7.23 | 12.74 | 0.13 | 0.06 | 0.06 | 0.19 | 2.08 |
EGW 20CB | 32 | 48.1 | 69.1 | 12.3 | 10.31 | 21.13 | 0.22 | 0.16 | 0.16 | 0.32 |
EGW 25SB | 33 | 7 | 25 | 73 | 60 | 6.5 | - | 35.5 | 59.1 | 21.9 | 4.55 | 12 | Ø7 | 7.5 | 10 | 8 | 8 | 23 | 18 | 11 | 9 | 7 | 60 | 20 | M6X20 | 11.40 | 19.50 | 0.23 | 0.12 | 0.12 | 0.35 | 2.67 |
EGW 25CB | 35 | 59 | 82.6 | 16.15 | 16.27 | 32.40 | 0.38 | 0.32 | 0.32 | 0.59 |
EGW 30SB | 42 | 10 | 31 | 90 | 72 | 9 | - | 41.5 | 69.5 | 26.75 | 6 | 12 | Ø9 | 7 | 10 | 8 | 9 | 28 | 23 | 11 | 9 | 7 | 80 | 20 | M6X25 | 16.42 | 28.10 | 0.40 | 0.21 | 0.21 | 0.62 | 4.35 |
EGW 30CB | 40 | 70.1 | 98.1 | 21.05 | 23.70 | 47.46 | 0.68 | 0.55 | 0.55 | 1.04 |
EGW 35SB | 48 | 11 | 33 | 100 | 82 | 9 | - | 45 | 75 | 28.5 | 7 | 12 | Ø9 | 10 | 13 | 8.5 | 8.5 | 34 | 27.5 | 14 | 12 | 9 | 80 | 20 | M8X25 | 22.66 | 37.38 | 0.56 | 0.31 | 0.31 | 0.84 | 6.14 |
EGW 35CB | 50 | 78 | 108 | 20 | 33.35 | 64.84 | 0.98 | 0.69 | 0.69 | 1.45 |
If you have any needs,pls feel free to contact us and we will send you our catalog for reference. Other Photos
Company Profile
Jiangsu Surman Equipment Engineering Co., Ltd. is a company that manufactures and sells series of transmission components and plastic mechanical equipment. Specializing in providing complete supporting services and solutions for automatic machinery and equipment.
Our company is a member of Nantong Automation Equipment Industry Association. Our main products include precision ball screws, linear guides, linear modules and other transmission functional parts, as well as plastic mechanical equipment and supporting products.
The products are mainly used in precision machine tools, processing centers, plastic machinery, textile machinery, printing machinery, pharmaceutical machinery, packaging machinery, carving machines, woodworking machinery, cutting machines, petroleum machinery and other automation equipment industries.
The company takes it as its duty to create maximum value for customers, and wholeheartedly provides customers with high-quality, professional and satisfactory products.
The pursuit of excellence and perfection!
Address:
No. 68, Changjiang Road, Haian, Nantong, Jiangsu, China
Business Type:
Manufacturer/Factory
Business Range:
Auto, Motorcycle Parts & Accessories, Chemicals, Industrial Equipment & Components, Manufacturing & Processing Machinery, Sporting Goods & Recreation, Tools & Hardware
Management System Certification:
ISO 9001, ISO 14001
Company Introduction:
Jiangsu Sierman Equipment Engineering Co., Ltd. is a manufacturer of ball screw, linear guide rail, linear bearing, linear optical shaft and other products. Professional automation machinery and equipment to provide a complete set of services and solutions. Our company is the Nantong Automation Equipment Industry Association member unit, the main products are precision grinding screw, rolling screw, linear ball linear guide rail, lead screw support seat, double axis core linear guide rail, cylindrical linear guide rail, linear bearing. The products are mainly used in textile machinery, printing machinery, power tools, medical machinery, precision machine tools, packaging machinery, engraving machine, woodworking machinery, cutting machine, petroleum machinery and other automation equipment industries. The company takes it as its duty to create maximum value for customers, and strives to provide customers with high-quality, professional and satisfactory products.