Sea trade route between west asia, south east asia and east asia

Trade routes between continental Asia toward Europe is often referred to as "line of spices", because the spices become the most sought after commodity in the trading activities at the time. Commodity spices produced in Europe, because that's not surprising when it is very high. In ancient times, the Asian continent has a role as a producer of goods to other countries, especially the European continent. Besides spices, the main commodities traded on the continent of Asia, among others:
1. in west asia form of tree sap for fragrances, textiles, coral reefs, pearl, gold, inlaid instrument of colored glass, stone
2. in south asia produced craft carvings, finely woven fabrics, handicrafts from elephant ivory, statues
3. in Southeast Asia produced a spice, camphor, rice, incense, sandalwood, aloe wood
4. in east asia produced silk, ceramics, porcelain, and jade.

The goods were acquired over many trading cities such as:
1. Cambay which is a major port city in india. In this lively city traders resilient tribe gujarat, which acts to spread the religion of Islam to Indonesia
2. Malacca which is a famous trading city on the outskirts of Malacca Strait which showcased many of commodities originating from developing countries to the west and the eastern
3. canton which is a major trading center in east asia and others.

Since early in the year AD traders in Asia tend to use the sea route instead of a landline (silk route). Before the silk route secured by Kublai Khan, the land route is considered less secure. In addition, the field lines are very heavy, lots of steep rock cliffs, steep ravine, a barren land, as well as land relief exhausting traders through. However, traders who use these waterways travel obstacles, such as:
1. frequent harassment from the pirates usually seize wealth and merchandise
2. trips sometimes hampered by wind and storm disturbance in the ocean.