Technical parameter:
Nitrided layer depth: 0.5-0.8mm
Nitrided hardness: 900-1000HV
Nitrided brittleness: Less than grade 1
Surface roughness: Ra0.4
Linearity of screw: 0.015mm
Hard-chrome plating hardness after nitriding: >=950HV
Chrome-plating layer depth: 0.025-0.085mm
Bimetallic layer depth: 3mm
Warranty and service: 1 year
We could manufacture various kinds of screws and barrels
according to the customer's requirement.
About ZY:
1. Rich strength----We have our own professional teams in the
sales, design, production, inspection and customer service
areas. We concentrate to bring customers the most perfect
customer experiences.
2. High-quality products----We adopt a series of advanced
production and processing equipments such as CNC machines,
Stellite PTA welding machines to ensure the quality of our
products.
3. Large international market----We do foreign trade more than
5 years, we have a set of mature foreign trade system, our
customers are all over the world. We will continue to expand
our international market.
4. Location advantage----We are located in China's screw
town----Jintang town, Zhoushan city, near to Ningbo Port and
Shanghai Port.
5. Serious and responsible attitude----Over the years, we
always maintain a serious, professional and responsible
attitude, make our best efforts to meet customers' demands.