预成型

It is a new preforming machine developed by combination with the characteristic of air spring forming, on the basis of digesting and absorbing foreign advance technology of micro tyre building machine, and adopts PLC automatic control and touch screen technology.

是我公司消化吸收国外微型轮胎成型机先进技术基础上，结合空气弹簧成型的特点开发的新型预成型机，并采用PLC自动控制和触摸屏技术。

For canvases over 40", it is best to brace the back or corners, if not using heavy duty stretchers. A major brand for stretcher bars is Fredrix, and these are sold in art stores and some office supply stores. If you are handy with saws, you can make your own stretchers with wood from the lumber yard, a piece of curved molding, and a mitre saw. Me, I'd rather spend my time painting, so I buy pre-made stretchers. You also will need "keys for the stretchers, small wooden angled chips, which are used to make the stretched canvas more snug in the corners. These are free, and are usually found near the stretcher bars, in a box. You need 8 of them; just grab a small handful when you buy your stretcher bars.

画布超过40 &，这是最好的，以振奋精神，背部或角落，如果不使用重型担架）的一大品牌，为担架网吧fredrix ，而且这些出售的艺术品商店和一些办公用品商店，如果你轻便与电锯，你可以作出你自己的担架，与木材，从木材堆场，这块弯曲成型，并米特雷看到我，我宁可花我的时间绘画，所以我买预作了担架上，你也将有需要的&钥匙，为担架上，小木船直角芯片，它被用来使绷画布更多的乐趣，在弯道，这些都是免费的，通常是附近发现担架酒吧，在一个方框，你需要八人；刚刚抓斗极少数的，当你买你的担架酒吧。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐