This standard is mainly applicable to laminar clean benches. Other local purification equipment can be inspected with reference to

This standard specifies the types and sizes of straight pipes, curved pipes and connecting flanges for conveying concrete. This st

The three-row column slewing bearing for construction machinery specified in this standard is a special force transmission basic c

This standard specifies the technical conditions for the preparation of test panels for architectural coatings, plate making metho

This standard is used in conjunction with JG/T3 054-1999 "Single-leaf flat-hinged multifunctional door". This standard is used in

This standard is compiled in accordance with the provisions of GB/T 1.1-2000 "Guidelines for Standardization Part 1: Structure and

This standard is compiled in accordance with the provisions of GB/T 1.1-2000 "Guidelines for Standardization Part 1: Structure and

This standard was first issued on November 21, 2001. This standard specifies the requirements, mechanical properties, test methods