ObsoleteGo to latest versionDZ/T 0277-2015

DZ 2.1-1987Diamond bits for geological drilling (English PDF)

地质钻探金刚石钻头

DZ 2.1 | Evolution and historical versions

Std ID	Title	Status
DZ/T 0277-2015	Diamond bits for geological core drilling	Valid
DZ 2.1-1987	Diamond bits for geological drilling	Obsolete

DZ 2.1-1987 is obsolete. It has been replaced by DZ/T 0277-2015. This page sells the obsolete edition, for projects and contracts that still cite it.

This is a limited preview

Buy now to download the full PDF

Need quotation for your management?

Get a formal quotation for DZ 2.1-1987 in 30 minutes.

Level / Type

National · Mandatory

Scope

DZ 2.1-1987 is the English-translated version of 地质钻探金刚石钻头.

DZ 2.1-1987 is the Chinese industry standard "Diamond bits for geological drilling". It is obsolete: it has been replaced by DZ/T 0277-2015.

Found what you need?

Document preview — DZ 2.1-1987

Document data

1 Document data

Sector: National Mandatory (industry standard).

Status: obsolete, replaced by DZ/T 0277-2015.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.

How to Download DZ 2.1-1987

1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.