Black metallurgical industry standard

People's Republic of black metallurgy industry standard YB / T 4001.1-2007

National Development and Reform Commission issued

Foreword

YB / T 4001 "steel grating and the package" is divided into three parts:

- Part I: steel grating;

- Part II: steel railings;

- Part III: ladders.

This section YB / T 4001 Part 1.

This section refer to the use of ISO 14122-2:2001 "Safety of machinery into the machinery and industrial equipment, fixed facilities, Part 2: Working platforms and channels."

This section instead of YB / T 4001-1998 "steel grating."

YB-T4001.1-2007Lattice steel plate