Grey iron casting,Ductile iron casting,Iron casting,Casting,Cast iron,Sand casting,Cast,Green sand c
municipal engineering, telecom, cable, petroleum, chemical industry
dia300mm----900mm (can follow your details drawing)
as your requirement
as its theoretical weight
A15, B125, C250, D400
high shock resistance and tensile strength, good welding properties
Tested item standard
Anti-breaking strength (Mpa) >14
Impact toughness resistance (kg/cm2) 95
tensile strength (Mpa) >10
compressive strength (Mpa) >30
Modulus of elasticity (kg/cm2) >1.4*104
Cold-hot resistance measure <0.4
Water-absorption (%) <1.0
Many kinds of manhole cover materials and processing methods available:
a) Grey iron
b) Ductile iron
e) Ordinary sand casting
f) Resin sand casting
g) Hand molding
h) Machine molding
We are DALIAN DOEI INTERNATIONAL TRADING CO., LTD., which was founded on
December 22, 1985 and has passed ISO 9001 and 9002 certification. Our products
are light industrial products and other marine products, clutch parts, steel casting,
sand casting and investment casting machinery knives and so on. Likewise, during
many years cooperation we keep a good relationship with many foreign companies,
especially with Japan, America, and Europe.
Hope we can have a good beginning and set up a long term relationship together with you!
Dalian Doei International Trading Co., Ltd
Founded on December 22, 1985, Dalian Doei International Trading Co., Ltd. is a Machine Shop located in Dalian, Liaoning, China.
In recent years, to meet the requirements of the international market, our company has passed the ISO 9001 and 9002 certifications. Likewise, most factories associated with us have received shipping classification certification, including: ABS, DNV, NK, BV, and LR. Furthermore, we maintain ongoing relationships with many shipbuilders abroad, especially those in Japan.
1. Drawing (Plans)
We can translate your original drawings, as well as examine, revise, and offer suggestions on the design.
We follow a strict inspection system to guarantee product quality. Furthermore, depending on the work pieces, we will conduct BT, PT, and/or MT inspection(s).
3. Designing of parts
Our company has the ability to design marine products. If you prefer, you can provide us with a plan, which we analyze in order to create a piece that meets craft regulations and customer expectations.
We have qualified inspectors. Our inspectors have the ability to judge a product's eligibility.
Services and Products:
Casting - Die - Investment - Lost Foam - Sand - Shell
Cutting Tools (Special) - Drilling - Milling - Reaming - Threading - Custom Manufactured
Forging - Heading - Hot / Cold Forming - Impression Die - Open Die - Press - Roll - Swaging - Upset
Machining - Gun Drilling - Micro-Drilling - Punching/Nibbling - Machining of Castings - Milling - Milling and Turning - Screw
Tubing - Bending / Forming - Hybrid - Reinforced - Swaging - Weldment