T/ZZB 1933-2020 Active Group standards

T/ZZB 1933-2020 Platform large-diameter positive and negative circulation engineering drill machine

Publish Date: 2020-11-23 Implement Date: 2020-12-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/ZZB 1933-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Construction engineering construction machinery

ICS Name: Construction equipment

Publish Date: 2020-11-23

Implement Date: 2020-12-01

Scope

Main technical content: This document specifies the types and models of platform-type large-diameter reverse circulation engineering drills, basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage, and user manuals, as well as quality commitments. This document is applicable to platform-type large-diameter reverse circulation engineering drills (hereinafter referred to as drills) with a drilling diameter of not less than 2.5 meters.