Announcement　of　Ministry　of　Industry　and　Information　Techndogy　of　the　People　s　Republic　of　China

Foreword

1　General　Provisions

2　Terms

3　Basic　Provisions

4　Approach　of　Raw　Materials　and　Finished　Products

• 4.1　General　Requirements

• 4.2　Steel　Materials

• 4.3　Welding　Materials

• 4.4　Standard　Fasteners　for　Connection

• 4.5　Steel　Strand，Steel　Wire　Rope，Wire　Clamp，Turn　Buckle　and　Anchor　Rod　for　Mast

• 4.6　Others

5　Welding　Work

• 5.1　General　Requirements

• 5.2　Welding　Work

6　Processing　Work　of　Steel　Parts　and　Components

• 6.1　General　Requirements

• 6.2　Cutting

• 6.3　Rectification　and　Forming

• 6.4　Processing　of　Edges

• 6.5　Holes　Making

• 6.6　Check　and　Acceptance　of　Parts　and　Elements

7　Anti-corrosion　Works

• 7.1　General　Requirements

• 7.2　Hot-dip　Galvanizing

• 7.3　Thermal　of　Spray　Zinc　and　Aluminum　Composite　Coating

8　Installation　Work　of　Steel　Structure　for　Tower　and　Mast

• 8.1　General　Requirements

• 8.2　Base　and　Bearing　Surface

• 8.3　Fastener　Connection

• 8.4　Installation　and　Correction

9　Check　and　Acceptance　of　Steel　Tower　and　Mast　Structure　for　Mobile　Communication　Engineering

• 9.1　General　Requirements

• 9.2　Base　and　Foundation

• 9.3　Steel　Structure　for　Tower　and　Mast

• 9.4　Grounding　Engineering

Appendix　A　Allowable　Variations　for　Overall　and　Geometric　Dimensions　of　Parts　and　Elements　for　Steel　Tower　and　Mast

Appendix　B　Inspection　and　Evidential　Testing　Items　of　Safety　and　Functionality　of　Steel　Tower　and　Mast

Appendix　C　Check　Items　of　Appearance　Quality　of　Sub-item　Projects　for　Steel　Tower　and　Mast

Appendix　D　Record　Forms　for　Quality　Acceptance　about　Sub-item　Inspection　Lots　of　Steel　Tower　and　Mast

Appendix　E　Record　Forms　for　Quality　Acceptance　about　Sub-item　of　Steel　Tower　and　Mast

Appendix　F　Record　Forms　for　Quality　Acceptance　about　subprojects（divisional　subprojects）of　Steel　Tower　and　Mast

Appendix　G　Record　Forms　for　Quality　Acceptance　about　Unit（Sub-unit）project　of　Mobile　Communication　Steel　Tower　and　Mast

Appendix　H　Explanation　of　Wording　in　This　Code