拉珠卷帘一般有上轨、上管、面料、下轨、制头、拉珠、安装码等几部分组成。机构卷管一般使用表面阳极氧化处理的铝合金管，在面料与卷管之间用PVC插片连接。无需缝制，装配简单，可在现场改制，在操作过程中利用制动弹簧以防止面料自由下滑，尾塞转轴采用铜轴以增加使用寿命，操作拉珠使用紧密拉珠，使拉珠与珠轮之间受力点增加，从而增加操作的平稳度，其下轨一般由铝合金底轨组成，也有做PVC材质等。制头一般采用pom塑料制成，拉珠有4.5mm密拉珠、7.0mm大拉珠、钢拉珠、铜拉珠等，适用相对应的制头。面料一般为透光面料或者遮光面料，材质有PV 涤沦 化钎 等。全遮光面料分涂银和涂白型，
Generally, bead roller shutter consists of upper rail, upper tube, fabric, lower rail, head making, bead pulling, installation code and other parts. Generally, aluminum alloy pipe with anodized surface is used for the rolling pipe of the mechanism, and PVC inserts are used for connection between the fabric and the rolling pipe. No need to sew, simple assembly, can be restructured on site. In the operation process, the brake spring is used to prevent the fabric from sliding freely. The tail plug shaft uses copper shaft to increase the service life. The operation pull bead uses close pull bead to increase the stress point between the pull bead and the bead wheel, thus increasing the operation stability. The lower rail is generally composed of aluminum alloy bottom rail, and PVC material is also used. The head is generally made of POM plastic, with 4.5mm thick pull bead, 7.0mm large pull bead, steel pull bead, copper pull bead, etc., applicable to the corresponding head. Generally, the fabric is light transmitting or light shielding, and the material is PVC polyester solder, etc. The full shading fabric is divided into silver coated and white coated