色综合久久蜜芽国产精品-国产女人被狂躁到高潮小说-国产高潮抽搐喷水高清-亚洲精品一卡2卡3卡4卡乱码

中文 | EN

2021/6/26

Selection principle of valves in petroleum and che

In the face of so many valve classification and so complex conditions, to choose the most suitabl
2021/5/28

Brief introduction of product performance of exhau

In the engineering design, all kinds of exhaust valves should be selected according to the specif
2021/4/30

What details should be paid attention to during th

The safety valve has great value and significance for safe operation and ensuring safe operation.
2021/4/9

What are the common faults of valve motor

Low protection level: the valve motor for Denso is fully enclosed squirrel cage structure, short-
2021/3/26

Control valve common failure analysis and solution

The control valve is widely used in oil refining and chemical industry. It is used to control the
2021/3/19

How to select valve material under high temperatur

Working condition of high temperature including high temperature, high temperature Ⅰ Ⅱ, high te
2021/1/29

Operating method of manual valve

Manual valve is a valve operated by handle and handwheel. It is a common valve used in equ
2021/1/22

Maintenance and operation of new valve before comm

Pre-maintenance of new valves before operation is a progressive construction concept to p

Page 13 / 15 total 113 records Frist | Previous | Next | Last

ABOUT US

Company profiles Honor Corporate culture Organizational Workshop

PRODUCTS

Ball valve Butterfly valve Plug Valve Hydraulic control valve API Valve

NEWS

Company News Industry News Technical knowledge

PROJECTS

SERVICE

Pre-sales service After-sale service oin us

+86-577-67353929

Sweep Mobile Access

Copyright©2020 Zhejiang Zhedong Valve Co., Ltd. Add: No.16 Zhoushan Road, Dongou Industrial Park, Oubei street, Yongjia County, Wenzhou City, Zhejiang Province E-mail: pans@zhedong-valve.com ZheICP20028831 Technical support: Fengsheng Technology

Service Hotline: +86 577-67996666 67353521