Hongzhan's walk-in laboratory is located at the China Institute of Metrology – a step-in constant temperature and humidity testing facility designed for large-scale industrial applications.

1. **Purpose**: This advanced laboratory is widely used in…

Selection of raw materials for polyurethane sheet:

The isocyanate (PAPI) component is typically sourced from Yantai Wanhua PM-200, and this component is fixed. As the amount of PAPI increases, the cross-l…

Selection of raw materials for polyurethane sheet:

The isocyanate (PAPI) component is sourced from Yantai Wanhua PM-200, and this component remains constant throughout the process. As the amount of PAPI i…

Cold water is a perennial herb with fleshy stems that can grow between 25 to 65 cm tall and are smooth. The leaves are arranged in opposite pairs, slightly different in size. Each leaf has an uneven petiole ranging from 0.5 to 7 cm in length. The leaves are membranous, narrow ovate or ovate in …

Angular porphyry is a type of igneous rock formed by volcanic activity from a subdistrict volcano, often associated with economically valuable mineral deposits. This rock typically contains various types of sul…

Angular porphyry forms through volcanic activity from a local volcano and often hosts economically valuable mineral deposits. For instance, the sulfide polymetallic deposit in Rio Tinto, Spain, and the gold-silver polymetallic pyrite-type copper deposit found in the Baiyin Mine of Gansu, China,…

Sculpture techniques encompass a wide range of methods beyond simple carving and shaping. In addition to these, inlay, mosaic, and pasting are also commonly used. Inlay involves embedding materials like jade, turquoise, or bovine bone into sculptures made of ivory or wood. Mosaic is a technique…

Downy mildew is a common and serious disease affecting spinach, with varying levels of damage from year to year. It is an obligate parasite that only infects spinach plants, making it particularly challenging to manage in agricultural settings. **Symptoms** Spinach downy mildew can affect lea…

The EU has introduced stricter measures to control the introduction of forest pests through wood packaging, which poses a significant threat to European agriculture, forestry, and the environment. These new re…

1. The Mechanism of Action of Cooling Lubricant

Cooling lubricants significantly enhance the cutting conditions during stone processing. They are primarily composed of emulsifiers and base oils, hence the…