The rectangular spline ring gauge is a comprehensive gauge that controls the working surface size and shape tolerance of the rectangular external spline. It is used in large-volume production to test the assembly and interchangeability of splines, and is easy and accurate to use. In the case of a spline size inspection, the looser the workpiece passed by the ring gauge, the smaller the geometric tolerance of the spline. The basic processing technology of the rectangular spline ring gauge is: blanking - pre-heat treatment - car - milling - heat treatment - grinding inner hole - grinding key groove. The key process is to grind the keyway, the size and shape tolerance are not
2020 Hottest cob grow light diy model, 200w grow light, cob grow light, high power grow light, etc.
Can also do OEM/ODM service, More cob Led Grow Lamp is a great ideal for all kinds of indoor garden plants: lettuce, orchid, organic herbs, pepper, strawberries, succulent, hydroponic, medical plants.
Whether it's hydroponics, plants in soil, you can add a touch of magic to every veg and flower with Xeccon grow lights.
Cob Grow Light,Best Cob Led Grow Light ,Grow Light Cob Diy,Diy Grow Light
Shenzhen Wenyi Lighting Technology Co., Ltd , https://www.szwygrow.com