... storage & Shipyard door & large industry building door Origin:Made in chinaBrand:ZXSS Model:ZXSS-GATE SERY Material:Stainless Steel & ... , better for the building; 3).The color painted in require, was use the colorful steel construction,and normal ... tenacious PVC curtain, curtain weight balance bar, guide wheel, lift steel line, glide wheel, side airproof, photoelectric switch, indicator light, buzzer ...