
Adjustable Door Closer Backcheck Hydraulic Control System Building Hardware Parts. Customized Manufacturing Process: Sand casting and machining processes can be customized to meet specific requirements. Customized Heat Treatment: Tempering and other heat treatment methods are available based on customer needs. OEM Service Available: Full OEM service provided for custom manufacturing and design requirements. Comprehensive Certifications: ISO 9001:2015, IATF 16949:2016, PPAP, RoHS, BV, and CC certified. Wide Material Options: Carbon steel and other materials can be customized for various applications. 100% Quality Inspection: All finished products undergo 100% visual inspection before shipping. Flexible Customization: Options include customization from samples, designs, and minor adjustments. Fast Lead Time: Average lead time within 15 working days for both peak and off-peak seasons.