Linyi Liangyu Steel Strip Co., Ltd

black finished spring steel strip *****: 65MN C50 T8A T10A 60SI2MN 2.SIZE: 0.25-2.50MM THICKNESS X 40-250M

roller SHUTTER SPRING STEEL STRIP *****: 65MNN C50 2.SIZE: 0.7-1.5MM THICK X 40-80MM WIDE X 3-6METER LO

SHUTTER SPRING STEEL STRIP *****: 65MNN C50 2.SIZE: 0.7-1.5MM THICK X 40-80MM WIDE *****: BLUE, BLA

BLUE SPRING STEEL STRIP 1. SIZE: 1). thickness: 0.25-2.50mm 2) width: 40-250mm 2. Material: 50#, 65M

Tempered and Hardened Steel Strip 1. 65Mn 50# T8A-T10A 2. Specification: 1). thickness: 0.25-2.50

WHITE POLISHED STEEL STRIP 1. MATERIAL: 65Mn 50# T8A-T10A 2. SPECIFICTION: 1). thickness: 0.25-2.50mm

1. Material: 65Mn 50# 2. Finished: hot tempered and hardened, black or blue finished, round edge HRC46-48

Material: 65Mn 50# Finished: hot tempered and hardened, black or blue finished, round edge HRC46-48 Size:

Blue Steel Strip / hot tempered & hardened steel strip/ cold rolled steel strip Specification: 1)

roller shutter spring 1. Material: 65Mn 50# 2. Finished: hot tempered and hardened, black or blue finish

ROLLING DOOR SPRING *****: 65Mn 50# *****: hot tempered and hardened, black or blue finished, round

polished cold rolled non alloy carbon steel strip 1. material: 50# 65Mn 60Si2Mn 2. size: 0.25-2.50mm

Blue spring steel Bright Steel Strip/ hot tempered & hardened steel strip/ cold rolled steel strip 1. S

spring box for shutter door spring Material: galvanized steel plate with nylon ball size: 200x42/50/6

1.black rolled steed strip, bright/white finished steel strip, blue finished steel strip, yellow finished stee

1.blue steed strip 2. Specification: 1). thickness: 0.25-3mm 2) width: 40-260mm 3. Materia

rolling door spring 1. Treatment: black, blue, yellow, bright/white 2. Specification: 1) thicknes