7月18日电，玻璃期货主力合约涨超4.6%，纯碱期货主力合约涨超4%。

Group 1 - The core viewpoint of the article highlights significant increases in futures contracts for glass and soda ash, with glass futures rising over 4.6% and soda ash futures increasing over 4% [1] Group 2 - The main focus is on the performance of the glass futures market, indicating a strong upward trend [1] - The soda ash futures market also shows positive momentum, reflecting broader market trends [1]