Jinhailuo is the best screw brand since 1978 . Nearly 40 years of experience and history in the manufacture of screw and barrel .

We have more than 10 groups furnace that depth can up to 12.5m , and a number of advanced screw and barrel professional processing equipment to meet the larger scale equipment’s high quality demand . We have processed the diameter of the screw and barrel can be reached 350mm.

Jwell will continue to keep innovation and improvement . Using high quality alloy steel as the base material, controlling the whole process of the quenching and tempering , qualitative , nitriding , surface alloy process .