The ladder coconut palm and the ladder steps use rectangular fang guan to design , the facile security , the stability is good 梯梆及梯踏步采用矩形方管设计，轻便安全，稳定性好。
As structural compents , square hollow steel sections have favourable properties for resisting compression , bending and torsion 方管作为结构构件，在压、弯、扭方面具有优越的性能。
Elm wood table with high waist , kidnapper apron and horse - hoof legs . it is unique in design , 19th century style 桌面框嵌独板，高束腰，下赞拐子条。马蹄足内翻，直方管腿杖。造型较为独特。 19世纪末款式。
The rectangular only then tubular design , its characteristic is : 1st : the entire glass fiber manufacture , the insulating ability is outstanding -矩形方管式设计，其特点为： 1全玻璃纤维制造，绝缘性能优异。
4th : the ladder coconut palm is the rectangular only then tubular design , four sides stress , anti - curved performance fine , is not easy to twist the distortion 4梯梆为矩形方管式设计，四面受力，抗弯性能优良，不易扭曲变形。
Cutting , beading machine etc . foot power shear - squre tube series - sanben technology co . , ltd . - cold curved shaping machinery - 产品展示所有产品剪,折,压筋,板系列脚踏剪板机-方管系列-江阴三本科技有限公司-专业钣金设备开发研制商-
This company specialized production circular pipe specificationcomplete , the price is reasonable , may carry on the productionaccording to the customer request 本公司专业生产的方管规格齐全，价格合理质量上乘，可根据客户要求进行生产
Duct manufacture auto - lineduct manufacture auto - line5 - squre tube series - sanben technology co . , ltd . - cold curved shaping machinery - 产品展示所有产品风管自动生产线风管生产线-方管系列-江阴三本科技有限公司-专业钣金设备开发研制商-
