Zhejiang Guanlong Valve Machinery Co., Ltd.

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Quality Control

QA/QC Introduction

Strictly according to the requirements of ISO9001, API 6A, API 6D, and CE, Guanlong Company control the quality in the processing of every product, and every product has its own serious number, which is in order to trace the whole process of the product quality  and content to the requirement of the users.

Test Equipment and Facilities


Name:Hardness gauge
Description:analysis gauge for carbon

Company Info

Zhejiang Guanlong Valve Machinery Co., Ltd.
[China]
[Verified Member]

Business Type:Manufacturer, Trading Company, Association

City: Wenzhou
Province/State: Zhejiang
Country/Region : China

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