zuanlongbits@gmail.com

+86-029-82612068

About Us



Email: zuanlongbits@gmail.com

Tel: +86-029-82612068

Fax: +86-029-82612068

Address:No 66, Changming Road, Xi'an, Shaanxi Province, China

Home > About Us

1,ZuanLong History

Shaanxi ZuanLong Drilling Machine Co.,Ltd(shortening in ZLONG Company),established in 2004,with registered capital of RMB 20million,is a hi-tech enterprise integrating R&D,manufacture and marketing.ZLONG Company professionally produces PDC drill bits,diamond drill bit,drill pipes and also R&D new products as per customers'request.All the products under control of ISO9001:2000 quality system and passed the inspection of Beijing Rock-drilling Machine Inspect Center and some of them obtained national patent.After several years' develop,ZLONG products have been widely used in cola mine field,petroleum field,and geological exploration field.Some of the products export to Vietnam,India and got widely praise from the users.


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2,ZuanLong Factory

ZuanLong Factory founded in early 2000 years.Located in QUJIANG New District of the ancient capital of Xi'an,with strong power of capital and technique,ZLONG Company built modern office building and workshop,introduced advanced technique and manufacturing technique and has advanced manufacturing equipments and precise inspection instruments.

ZLONG makes quality as its life,,best service as its soul!Whenever you need,ZLONG is at your side!


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3,ZuanLong Product


ZuanLong Product as the following shown:


PDC 2 wings half tips bit

PDC 2 wings full tips bit

PDC 3 wings half tips bit

PDC three wings concave drill bit

PDC four wings concave drill bit

PDC three wings drag bit

PDC four wings drag bit

PDC pillar drill bit

PDC Reamer drill bit

three wings concave drill bit with matrix body

four wings concave drill bit

PDC pillar drill bit with matrix body

PDC core bit with steel body

PDC rib band core bit with steel body

PDC core bit with matrix body

Natural diamond impregnated core bit

Natural diamond skin impregnated core bit



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4,ZuanLong Certificate


We always feel that all success of our company is directly related to the quality of the product we offer.All the products under control of ISO9001:2000 quality system and passed the inspection of Beijing Rock-drilling Machine Inspect Center and some of them obtained national patent.


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5,ZuanLong Service


1) Direct factory wholesale price, price is cheaper than trading companies.

2) Strict Quality Control Department, each piece bit need to be checked.

3) Accept custom order. can special make for you.

4) Focus on the quality.We seek long-term interest.

5) Welcome small orders, our Min Quantity Order is 1 piece.

6)Free Sample is provided,you only need to pay the shipping fee.




6,ZuanLong Shipping


1. FedEx/DHL/UPS/TNT for samples, Door-to-Door;

2. By Air or by Sea for batch goods, for FCL; Airport/ Port receiving;

3. Customers specifying freight forwarders or negotiable shipping methods;

4. Delivery Time:1-5 days for sample,1-15 days for batch goods.