Product Description
1. The hardness is 30-55 HRC depend on user demand
2. Finish: Bright polished
3. Edge: One or both edges round square chamfered and beveled
4. OEM 65Mn cold rolled steel strip
5. Tolerance of thickness: +/-0.01mm, width: +/-0.1mm
A manufacturer and exporter of strip steel.Our company occupies an area of 10,000 square meters,which is a professional private factory for strip steel products. Our factory was established in 2002,through these years' development,we expanded our company with an asset totally value RMB50 million and 100 staffs.There are 20 advanced technicians & experts and have owned the advanced equipment & adopted the strict quality inspection system.We pride ourselves on high quality,excellent service and competitive price,and insist that all the products are equally important to ensure the long-term cooperation.
We are in a position to supply more than 6,000Mts superior quality steel strips made by different kinds of steel grades,including Stainless Chilled Hardened Steel (3Cr13\6Cr13),Carbon Construction Steel,Carbon Tool Steel,Spring Steel,Alloy Tool Steel,Alloy Construction Steel (T8(A) T9(A),T10(A),60Si2Mn,60Si2MnA, 50CrVA;50CRV4;45 ,50 ,60 ,65Mn;SK3,SK4,SK5,AISI420J,Q195,Q235 and etc) with the specifications of 0.1-3.0 20-350mm.The advanced processing and cutting equipment make cutting and surface treatments conform to individual customers' requirements.
Our products are widely applicate for automobile industry,electrical machine,stationary,rolling door,clockwork feed,standard parts etc.
Product Description
Torsion spring for rolling shutter doors factory directly
Quality insurance
Supply with best price and service
MOQ: 1000 pieces
Material: Metal Steel
Torsion springs for roller shutter door:
Rolling shutter spring and rolling shutter boxes:
