BJ-YJ电动压筋机 BJ-JK Electric tendon pressing machine 适用厚度≤1.2mm Suitable thickness≤1.2mm 长度≤2300mm　　Length≤2300mm 用于风管平面加强筋压制，更换模轮亦可为拼板合缝压平所用 It’s used in pressing the strong tendons on the surface of the wind pipe, altemating model or flatting the seams of the joints. BJ-JK联压接口机 BJ-JK Mouth connection through combination pressure machine 适用厚度≤1.2mm Suitable thickness≤1.2mm 圆管、方管的咬口接合和平板压筋 Round and rect pipes are in connection with through mouth clench and flat shett pressing. BJ-ZD电动折叠机 BJ-ZD Electric folding machine 适用厚度≤0.5mm Suitable thickness≤0.5mm 用于油塔的保温外壳制作 （参看第6页石油炼化塔照片） In fabricating warm-keeping covering shells for oil tower.(Refer to the photo of oil refinery tower at page6)