China has completed its first high-precision roundness reference device, filling a domestic gap in roundness measurement traceability and bringing its technical capability into the international advanced tier. The device will provide high-reliability, high-precision traceability support for aerospace, high-end machine tools, advanced optics and semiconductor manufacturing, strengthen the national geometric metrology system, and is expected to inject fresh momentum into technological development

China's pig market has staged a short-term rebound: the national average price for crossbred live hogs rose from 9.47 yuan/kg on June 26 to 11.06 yuan/kg on July 6, a 10-day consecutive gain of 1.59 yuan/kg (+16.8%), returning above 10 yuan/kg after roughly four months. Discounted prices for culled sows fell sharply. Authorities have again intensified calls to accelerate herd reduction. Market participants are debating whether the cycle has reached a 'super bottom' and the related investment opportunities. On July 6 the Shenwan Agriculture, Forestry, Animal Husbandry & Fishery index rose 2.57%; sector names were broadly higher — Juxing Agriculture hit the daily limit, New Hope +7.52%, Tianbang Foods +6.61%, with Wens and Muyuan also up.

A股商業航天板塊震盪下挫，神劍股份午後觸及跌停，天力複合、電科藍天、上海瀚訊跌超10%，斯瑞新材、中材科技、鉑力特、乾照光電跟跌。