1. flexibility, 2.high strength, 3. elongation, 4.use small group, 5.transmission well-balanced length, high

Narrow  V belt flexibility, high strength, elongation, use small group, transmission well-balanced length, high

3-15PK 577,585,590,595,630,700,712,722,728,735,750,760,

770,800,813,820,830,840,847,850,865,870,875,880,890,918,920,

935,945,950,960,970,975,980,985,990,995,1000,1005,1010,1015,

1100,1115,1120,1125,1130,1135,1140,1150,1155,1175,1180,1200,

1210,1220,1230,1240,1250,1270,1280,1290,1300,1340,1345,1350,

1355,1360,1370,1380,1390,1400,1410,1420,1430,1440,1450,1460,

1470,1480,1490,1500,1510,1530,1540,1550,1560,1570,1580,1590,

1600,1610,1620,1630,1640,1650,1660,1670,1680,1705,1710,1720,

1725,1730,1740,1750,1760,1770,1780,1790,1800,1805,1810,1815,

1820,1825,1830,1840,1850,1860,1870,1880,1885,1890,1895,2000,

2005,2010,2015,2020,2025,2030,2040,2045,2050,2055,2065,2070,

2075,2080,2085,2090,2100,2115,2120,2125,2130,2140,2150,2160,

2170,2175,2180,2190,2200,2225,2300,2310,2320,2330,2340,2350,

2360,2370,2380,2390,2400,2405,2410,2415,2420,2430,2440,2450,

2460,2470,2480,2490,2500,2510,2520,2540